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2'-Modified Nucleosides
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DMT-cEt-A(Bz)

Description: DMT-cEt-A(Bz) is a nucleoside analog based on an adenosine scaffold with a constrained ethyl (cEt) modification on the ribose, where the nucleobase is protected with a benzoyl (Bz) group, and the 5'-hydroxyl is protected with a dimethoxytrityl (DMT) group. This modification increases duplex thermal stability, enhances binding affinity to complementary strands, and improves resistance to nuclease degradation. DMT-cEt-A(Bz) is commonly used in the synthesis of antisense oligonucleotides, siRNAs, and other therapeutic nucleic acids, providing improved potency, specificity, and in vivo stability.
CAT: BRP-02734
CAS: 1197033-18-3
Molecular Formula: C40H37N5O7
Molecular Weight: 699.76
Purity: ≥95%
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Density: 1.36±0.1 g/cm3
InChIKey: CDFUACRUGQPKNI-YUJUXCJOSA-N
CanonicalSMILES: C[C@H]1[C@]2([C@H]([C@@H](O1)[C@@H](O2)N3C=NC4=C(N=CN=C43)NC(=O)C5=CC=CC=C5)O)COC(C6=CC=CC=C6)(C7=CC=C(C=C7)OC)C8=CC=C(C=C8)OC
IUPAC Name: N-[9-[(1R,3R,4R,6S,7S)-1-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-7-hydroxy-6-methyl-2,5-dioxabicyclo[2.2.1]heptan-3-yl]purin-6-yl]benzamide
InChI: InChI=1S/C40H37N5O7/c1-25-39(22-50-40(27-12-8-5-9-13-27,28-14-18-30(48-2)19-15-28)29-16-20-31(49-3)21-17-29)34(46)33(51-25)38(52-39)45-24-43-32-35(41-23-42-36(32)45)44-37(47)26-10-6-4-7-11-26/h4-21,23-25,33-34,38,46H,22H2,1-3H3,(H,41,42,44,47)/t25-,33+,34-,38+,39-/m0/s1
Synonyms: N-(9-((1R,3R,4R,6S,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-7-hydroxy-6-methyl-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-9H-purin-6-yl)benzamide; Benzamide, N-[9-[2,5-anhydro-4-C-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-deoxy-α-L-mannofuranosyl]-9H-purin-6-yl]-; 5'-ODMT cEt N-Bz A; 9-(2,5-Anhydro-4-{[bis(4-methoxyphenyl)(phenyl)methoxy]methyl}-6-deoxy-α-L-mannofuranosyl)-N-benzoyl-9H-purin-6-amine; cEt-N6-benzoyladenosine; DMT-(C-Et)-LNA-A(Bz); 5'-O-DMTr-cEt-BNA-N6-Bz-adenosine; 5'-O-DMT cEt A(Bz)

DMT-cEt-G(iBu)

Description: DMT-cEt-G(iBu) is a nucleoside analog based on a guanosine scaffold with a constrained ethyl (cEt) modification on the ribose, where the nucleobase is protected with an isobutyryl (iBu) group, and the 5'-hydroxyl is protected with a dimethoxytrityl (DMT) group. This modification increases duplex thermal stability, enhances binding affinity to complementary strands, and improves resistance to nuclease degradation. DMT-cEt-G(iBu) is commonly used in the synthesis of antisense oligonucleotides, siRNAs, and other therapeutic nucleic acids, providing improved potency, specificity, and in vivo stability.
CAT: BRP-02735
CAS: 945628-65-9
Molecular Formula: C37H39N5O8
Molecular Weight: 681.75
Purity: ≥95%
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Density: 1.39±0.1 g/cm3
InChIKey: IBDQCNVRHGCMBR-SOZRNBFUSA-N
CanonicalSMILES: C[C@H]1[C@]2([C@H]([C@@H](O1)[C@@H](O2)N3C=NC4=C3N=C(NC4=O)NC(=O)C(C)C)O)COC(C5=CC=CC=C5)(C6=CC=C(C=C6)OC)C7=CC=C(C=C7)OC
IUPAC Name: N-[9-[(1R,3R,4R,6S,7S)-1-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-7-hydroxy-6-methyl-2,5-dioxabicyclo[2.2.1]heptan-3-yl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide
InChI: InChI=1S/C37H39N5O8/c1-21(2)32(44)40-35-39-31-28(33(45)41-35)38-20-42(31)34-29-30(43)36(50-34,22(3)49-29)19-48-37(23-9-7-6-8-10-23,24-11-15-26(46-4)16-12-24)25-13-17-27(47-5)18-14-25/h6-18,20-22,29-30,34,43H,19H2,1-5H3,(H2,39,40,41,44,45)/t22-,29+,30-,34+,36-/m0/s1
Synonyms: DMT-(C-Et)-LNA-G(iBu); 5'-O-DMTr-cEt-BNA-N2-iBu-guanosine; 5'-O-DMT cEt G(iBu); N-(9-((1R,3R,4R,6S,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-7-hydroxy-6-methyl-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)isobutyramide; DMT-cEt-N2-isobutyroylguanosine; Propanamide, N-[9-[2,5-anhydro-4-C-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-deoxy-α-L-mannofuranosyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methyl-; 5'-ODMT cEt N-iBu G

DMT-(CN-LNA)-5MeC(Bz)

Description: DMT-(CN-LNA)-5MeC(Bz) is a nucleoside analog based on a Locked Nucleic Acid (LNA) scaffold, where the ribose ring is conformationally locked by a 2'-O to 4'-C methylene bridge, the nucleobase is 5-methylcytidine protected with a benzoyl (Bz) group, and the 5'-hydroxyl is protected with a dimethoxytrityl (DMT) group. This modification enhances duplex thermal stability, increases binding affinity to complementary strands, and improves resistance to nuclease degradation. DMT-(CN-LNA)-5MeC(Bz) is commonly used in the synthesis of antisense oligonucleotides, siRNAs, and other therapeutic nucleic acids, providing improved potency, specificity, and in vivo stability.
CAT: BRP-02736
Molecular Formula: C40H36N4O8
Molecular Weight: 700.75
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InChIKey: VHAMQKFRTVXTEC-JZFRJSNESA-N
CanonicalSMILES: O[C@@H]([C@H]([C@@H]1N2C(N=C(NC(C3=CC=CC=C3)=O)C(C)=C2)=O)O[C@H]4C#N)[C@]4(O1)COC(C5=CC=CC=C5)(C6=CC=C(OC)C=C6)C7=CC=C(OC)C=C7
InChI: InChI=1S/C40H36N4O8/c1-25-23-44(38(47)43-35(25)42-36(46)26-10-6-4-7-11-26)37-33-34(45)39(52-37,32(22-41)51-33)24-50-40(27-12-8-5-9-13-27,28-14-18-30(48-2)19-15-28)29-16-20-31(49-3)21-17-29/h4-21,23,32-34,37,45H,24H2,1-3H3,(H,42,43,46,47)/t32-,33+,34-,37+,39-/m0/s1
Synonyms: N-(1-((1R,3R,4R,6S,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-6-cyano-7-hydroxy-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-5-methyl-2-oxo-1,2-dihydropyrimidin-4-yl)benzamide; 5'-DMTr-CN-LNA-5-Me-rC(Bz); 5'-DMTr-CN-LNA-N4-benzoyl-5-methylcytidine

DMT-(CN-LNA)-A(Bz)

Description: DMT-(CN-LNA)-A(Bz) is a nucleoside analog based on a Locked Nucleic Acid (LNA) scaffold, where the ribose ring is conformationally locked by a 2'-O to 4'-C methylene bridge, the nucleobase is adenine protected with a benzoyl (Bz) group, and the 5'-hydroxyl is protected with a dimethoxytrityl (DMT) group. This modification increases duplex thermal stability, enhances binding affinity to complementary strands, and improves resistance to nuclease degradation. DMT-(CN-LNA)-A(Bz) is commonly used in the synthesis of antisense oligonucleotides, siRNAs, and other therapeutic nucleic acids, providing improved potency, specificity, and in vivo stability.
CAT: BRP-02737
Molecular Formula: C40H34N6O7
Molecular Weight: 710.75
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InChIKey: UMNDJKRRBHLKAK-BVNFGCNBSA-N
CanonicalSMILES: O[C@@H]([C@H]([C@@H]1N2C(N=CN=C3NC(C4=CC=CC=C4)=O)=C3N=C2)O[C@H]5C#N)[C@]5(O1)COC(C6=CC=CC=C6)(C7=CC=C(OC)C=C7)C8=CC=C(OC)C=C8
InChI: InChI=1S/C40H34N6O7/c1-49-29-17-13-27(14-18-29)40(26-11-7-4-8-12-26,28-15-19-30(50-2)20-16-28)51-22-39-31(21-41)52-33(34(39)47)38(53-39)46-24-44-32-35(42-23-43-36(32)46)45-37(48)25-9-5-3-6-10-25/h3-20,23-24,31,33-34,38,47H,22H2,1-2H3,(H,42,43,45,48)/t31-,33+,34-,38+,39-/m0/s1
Synonyms: N-(9-((1R,3R,4R,6S,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-6-cyano-7-hydroxy-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-9H-purin-6-yl)benzamide; 5'-DMTr-CN-LNA-N6-Bz-A; 5'-DMTr-CN-LNA-N6-benzoyladenosine

DMT-(CN-LNA)-G(iBu)

Description: DMT-(CN-LNA)-G(iBu) is a nucleoside analog based on a Locked Nucleic Acid (LNA) scaffold, where the ribose ring is conformationally locked by a 2'-O to 4'-C methylene bridge, the nucleobase is guanosine protected with an isobutyryl (iBu) group, and the 5'-hydroxyl is protected with a dimethoxytrityl (DMT) group. This modification enhances duplex thermal stability, increases binding affinity to complementary strands, and improves resistance to nuclease degradation. DMT-(CN-LNA)-G(iBu) is commonly used in the synthesis of antisense oligonucleotides, siRNAs, and other therapeutic nucleic acids, providing improved potency, specificity, and in vivo stability.
CAT: BRP-02738
Molecular Formula: C37H36N6O8
Molecular Weight: 692.73
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InChIKey: DTVHUWBCWJTSRY-LTLPDDCTSA-N
CanonicalSMILES: O[C@@H]([C@H]([C@@H]1N2C(N=C(NC(C(C)C)=O)NC3=O)=C3N=C2)O[C@H]4C#N)[C@]4(O1)COC(C5=CC=CC=C5)(C6=CC=C(OC)C=C6)C7=CC=C(OC)C=C7
InChI: InChI=1S/C37H36N6O8/c1-21(2)32(45)41-35-40-31-28(33(46)42-35)39-20-43(31)34-29-30(44)36(51-34,27(18-38)50-29)19-49-37(22-8-6-5-7-9-22,23-10-14-25(47-3)15-11-23)24-12-16-26(48-4)17-13-24/h5-17,20-21,27,29-30,34,44H,19H2,1-4H3,(H2,40,41,42,45,46)/t27-,29+,30-,34+,36-/m0/s1
Synonyms: N-(9-((1R,3R,4R,6S,7S)-1-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-6-cyano-7-hydroxy-2,5-dioxabicyclo[2.2.1]heptan-3-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)isobutyramide; 5'-DMTr-CN-LNA-N2-iBu-G; 5'-DMTr-CN-LNA-N2-isobutyroylguanosine

2'-O-POM-rC(Ac)

Description: 2'-O-POM-rC(Ac) is a ribonucleoside analog in which cytidine is protected at the 2'-hydroxyl with a pivaloyloxymethyl (POM) group and at the nucleobase with an acetyl (Ac) group. These protective groups stabilize the nucleoside during solid-phase RNA synthesis, minimizing side reactions and ensuring efficient chain assembly. 2'-O-POM-rC(Ac) is used as a building block in the synthesis of modified oligoribonucleotides for research and therapeutic applications.
CAT: BRP-02739
Molecular Formula: C17H25N3O8
Molecular Weight: 399.40
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InChIKey: XEJDDMFTMGCJLH-FMKGYKFTSA-N
CanonicalSMILES: O[C@H]1[C@@H](OCOC(C(C)(C)C)=O)[C@H](N2C(N=C(NC(C)=O)C=C2)=O)O[C@@H]1CO
InChI: InChI=1S/C17H25N3O8/c1-9(22)18-11-5-6-20(16(25)19-11)14-13(12(23)10(7-21)28-14)26-8-27-15(24)17(2,3)4/h5-6,10,12-14,21,23H,7-8H2,1-4H3,(H,18,19,22,25)/t10-,12-,13-,14-/m1/s1
Synonyms: (((2R,3R,4R,5R)-2-(4-Acetamido-2-oxopyrimidin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)methyl pivalate; N-Acetyl-2'-O-(pivaloyloxymethyl)cytidine; 2'-O-(Pivaloyloxymethyl)-N4-acetylcytidine; N4-Acetyl-2'-O-(pivaloyloxymethyl)cytidine; N4-Ac-2'-O-POM-cytidine; 2'-O-POM-Ac-rC; 2'-O-POM-N4-acetylcytidine

2'-O-POM-rC(Bz)

Description: 2'-O-POM-rC(Bz) is a ribonucleoside analog in which cytidine is protected at the 2'-hydroxyl with a pivaloyloxymethyl (POM) group and at the nucleobase with a benzoyl (Bz) group. These protective groups stabilize the nucleoside during solid-phase RNA synthesis, preventing undesired side reactions and allowing efficient chain elongation. 2'-O-POM-rC(Bz) is widely used as a building block in the preparation of modified oligoribonucleotides for research and therapeutic applications.
CAT: BRP-02740
Molecular Formula: C22H27N3O8
Molecular Weight: 461.47
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InChIKey: WXPPKPPFDILVCF-KLICCBINSA-N
CanonicalSMILES: O[C@H]1[C@@H](OCOC(C(C)(C)C)=O)[C@H](N2C(N=C(NC(C3=CC=CC=C3)=O)C=C2)=O)O[C@@H]1CO
InChI: InChI=1S/C22H27N3O8/c1-22(2,3)20(29)32-12-31-17-16(27)14(11-26)33-19(17)25-10-9-15(24-21(25)30)23-18(28)13-7-5-4-6-8-13/h4-10,14,16-17,19,26-27H,11-12H2,1-3H3,(H,23,24,28,30)/t14-,16-,17-,19-/m1/s1
Synonyms: (((2R,3R,4R,5R)-2-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)methyl pivalate; N-Benzoyl-2'-O-(pivaloyloxymethyl)cytidine; 2'-O-(Pivaloyloxymethyl)-N4-benzoylcytidine; N4-Benzoyl-2'-O-(pivaloyloxymethyl)cytidine; N4-Bz-2'-O-POM-cytidine; 2'-O-POM-Bz-rC; 2'-O-POM-N4-benzoylcytidine

2'-O-POM-MeC(Bz)

Description: 2'-O-POM-MeC(Bz) is a ribonucleoside analog in which 5-methylcytidine is protected at the 2'-hydroxyl with a pivaloyloxymethyl (POM) group and at the nucleobase with a benzoyl (Bz) group. These protective groups stabilize the nucleoside during solid-phase RNA synthesis, reducing undesired side reactions and enabling efficient chain elongation. 2'-O-POM-MeC(Bz) is used as a building block in the preparation of modified oligoribonucleotides for research and therapeutic applications.
CAT: BRP-02741
Molecular Formula: C23H29N3O8
Molecular Weight: 475.50
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InChIKey: WQVSFUPAGYPXBE-WOCWXWTJSA-N
CanonicalSMILES: O[C@H]1[C@@H](OCOC(C(C)(C)C)=O)[C@H](N2C(N=C(NC(C3=CC=CC=C3)=O)C(C)=C2)=O)O[C@@H]1CO
InChI: InChI=1S/C23H29N3O8/c1-13-10-26(22(31)25-18(13)24-19(29)14-8-6-5-7-9-14)20-17(16(28)15(11-27)34-20)32-12-33-21(30)23(2,3)4/h5-10,15-17,20,27-28H,11-12H2,1-4H3,(H,24,25,29,31)/t15-,16-,17-,20-/m1/s1
Synonyms: (((2R,3R,4R,5R)-2-(4-Benzamido-5-methyl-2-oxopyrimidin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)methyl pivalate; N-Benzoyl-5-methyl-2'-O-(pivaloyloxymethyl)cytidine; 2'-O-(Pivaloyloxymethyl)-N4-benzoyl-5-methylcytidine; N4-Benzoyl-2'-O-(pivaloyloxymethyl)-5-methylcytidine; N4-Bz-2'-O-POM-5-methylcytidine; 2'-O-POM-Bz-5-Me-rC; 2'-O-POM-N4-benzoyl-5-methylcytidine

2'-O-POM-rG(iBu)

Description: 2'-O-POM-rG(iBu) is a ribonucleoside analog in which guanosine is protected at the 2'-hydroxyl with a pivaloyloxymethyl (POM) group and at the nucleobase with an isobutyryl (iBu) group. These protective groups provide stability during solid-phase RNA synthesis, preventing side reactions and ensuring efficient chain elongation. 2'-O-POM-rG(iBu) is used as a building block in the synthesis of modified oligoribonucleotides for research and therapeutic applications.
CAT: BRP-02742
Molecular Formula: C20H29N5O8
Molecular Weight: 467.48
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InChIKey: DWCMHMWKHDQFIB-CNEMSGBDSA-N
CanonicalSMILES: O[C@H]1[C@@H](OCOC(C(C)(C)C)=O)[C@H](N2C=NC3=C2N=C(NC(C(C)C)=O)NC3=O)O[C@@H]1CO
InChI: InChI=1S/C20H29N5O8/c1-9(2)15(28)23-19-22-14-11(16(29)24-19)21-7-25(14)17-13(12(27)10(6-26)33-17)31-8-32-18(30)20(3,4)5/h7,9-10,12-13,17,26-27H,6,8H2,1-5H3,(H2,22,23,24,28,29)/t10-,12-,13-,17-/m1/s1
Synonyms: (((2R,3R,4R,5R)-4-Hydroxy-5-(hydroxymethyl)-2-(2-isobutyramido-6-oxo-1,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3-yl)oxy)methyl pivalate; 2'-OPOM-iBu-G; 2'-O-POM-G(iBu); 2'-O-POM Guanosine (iBu); N2-iBu-2'-O-POM-guanosine; N2-Isobutyroyl-2'-O-(pivaloyloxymethyl)guanosine

2'-O-POM-rG(dmf)

Description: 2'-O-POM-rG(dmf) is a ribonucleoside analog in which guanosine is protected at the 2'-hydroxyl with a pivaloyloxymethyl (POM) group and at the nucleobase with a dimethylformamidine (dmf) group. These protective groups stabilize the nucleoside during solid-phase RNA synthesis, minimizing side reactions and allowing efficient chain assembly. 2'-O-POM-rG(dmf) is used as a building block in the preparation of modified oligoribonucleotides for research and therapeutic applications.
CAT: BRP-02743
Molecular Formula: C19H28N6O7
Molecular Weight: 452.47
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InChIKey: QWYLYEFGQNXHOE-XNIJJKJLSA-N
CanonicalSMILES: O[C@H]1[C@@H](OCOC(C(C)(C)C)=O)[C@H](N2C=NC3=C2N=C(N=CN(C)C)NC3=O)O[C@@H]1CO
InChI: InChI=1S/C19H28N6O7/c1-19(2,3)17(29)31-9-30-13-12(27)10(6-26)32-16(13)25-8-20-11-14(25)22-18(23-15(11)28)21-7-24(4)5/h7-8,10,12-13,16,26-27H,6,9H2,1-5H3,(H,22,23,28)/t10-,12-,13-,16-/m1/s1
Synonyms: (((2R,3R,4R,5R)-2-(2-(((Dimethylamino)methylene)amino)-6-oxo-1,6-dihydro-9H-purin-9-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)oxy)methyl pivalate; 2'-OPOM-DMF-G; 2'-O-POM-G(DMF); 2'-O-POM Guanosine (DMF); N2-DMF-2'-O-POM-guanosine; N2-Dimethylformamide-2'-O-(pivaloyloxymethyl)guanosine

5'-O-DMT-N6-benzoyl-2',3'-seco-β-adenine

Description: 5'-O-DMT-N6-benzoyl-2',3'-seco-β-adenine is a nucleoside analog in which the ribose ring is opened at the 2',3'-positions (seco modification), the 5'-hydroxyl is protected with a dimethoxytrityl (DMT) group, and the adenine base is protected at the N6 position with a benzoyl (Bz) group. This design provides stability and controlled reactivity during solid-phase oligonucleotide synthesis. 5'-O-DMT-N6-benzoyl-2',3'-seco-β-adenine is used as a synthetic intermediate for incorporating modified adenine residues into oligonucleotides for research and therapeutic applications.
CAT: BRP-02744
CAS: 1044505-21-6
Molecular Formula: C38H37N5O7
Molecular Weight: 675.73
Purity: ≥98%
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Density: 1.293±0.14 g/cm3
InChIKey: IKKJMRNTMQLEPN-JHOUSYSJSA-N
CanonicalSMILES: COC1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=C(C=C3)OC)OC[C@H](CO)O[C@H](CO)N4C=NC5=C(N=CN=C54)NC(=O)C6=CC=CC=C6
IUPAC Name: N-[9-[(1R)-1-[(2S)-1-[bis(4-methoxyphenyl)-phenylmethoxy]-3-hydroxypropan-2-yl]oxy-2-hydroxyethyl]purin-6-yl]benzamide
InChI: InChI=1S/C38H37N5O7/c1-47-30-17-13-28(14-18-30)38(27-11-7-4-8-12-27,29-15-19-31(48-2)20-16-29)49-23-32(21-44)50-33(22-45)43-25-41-34-35(39-24-40-36(34)43)42-37(46)26-9-5-3-6-10-26/h3-20,24-25,32-33,44-45H,21-23H2,1-2H3,(H,39,40,42,46)/t32-,33+/m0/s1
Synonyms: Benzamide, N-[9-[(1R)-1-[(1S)-2-[bis(4-methoxyphenyl)phenylmethoxy]-1-(hydroxymethyl)ethoxy]-2-hydroxyethyl]-9H-purin-6-yl]-; 6-N-Benzoyl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secoadenosine; N-(9-((R)-1-(((S)-1-(Bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)-2-hydroxyethyl)-9H-purin-6-yl)benzamide; 5'-O-DMT-2',3'-Seco-N6-benzoyl Adenosine; N6-Benzoyl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secoadenosine

5'-O-DMT-N4-acetyl-2',3'-seco-β-cytosine

Description: 5'-O-DMT-N4-acetyl-2',3'-seco-β-cytosine is a nucleoside analog in which the ribose ring is opened at the 2',3'-positions (seco modification), the cytosine base is protected at the N4 position with an acetyl (Ac) group, and the 5'-hydroxyl is masked with a dimethoxytrityl (DMT) group. These protecting groups provide stability and controlled reactivity during solid-phase oligonucleotide synthesis. This compound serves as a synthetic intermediate for incorporating modified cytosine residues into oligonucleotides for research and therapeutic applications.
CAT: BRP-02745
CAS: 1120329-54-5
Molecular Formula: C32H35N3O8
Molecular Weight: 589.64
Purity: ≥98%
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Density: 1.253±0.14 g/cm3
InChIKey: GCQMRUFKRHLPNR-MFMCTBQISA-N
CanonicalSMILES: CC(=O)NC1=NC(=O)N(C=C1)[C@@H](CO)O[C@@H](CO)COC(C2=CC=CC=C2)(C3=CC=C(C=C3)OC)C4=CC=C(C=C4)OC
IUPAC Name: N-[1-[(1R)-1-[(2S)-1-[bis(4-methoxyphenyl)-phenylmethoxy]-3-hydroxypropan-2-yl]oxy-2-hydroxyethyl]-2-oxopyrimidin-4-yl]acetamide
InChI: InChI=1S/C32H35N3O8/c1-22(38)33-29-17-18-35(31(39)34-29)30(20-37)43-28(19-36)21-42-32(23-7-5-4-6-8-23,24-9-13-26(40-2)14-10-24)25-11-15-27(41-3)16-12-25/h4-18,28,30,36-37H,19-21H2,1-3H3,(H,33,34,38,39)/t28-,30+/m0/s1
Synonyms: Acetamide, N-[1-[(1R)-1-[(1S)-2-[bis(4-methoxyphenyl)phenylmethoxy]-1-(hydroxymethyl)ethoxy]-2-hydroxyethyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]-; N-(1-((R)-1-(((S)-1-(Bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)-2-hydroxyethyl)-2-oxo-1,2-dihydropyrimidin-4-yl)acetamide; 5'-O-DMT-2',3'-Seco-N4-Acetyl Cytidine; N4-Acetyl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secocytidine

5'-O-DMT-N2-isobutyryl-2',3'-seco-β-guanine

Description: 5'-O-DMT-N2-isobutyryl-2',3'-seco-β-guanine is a nucleoside analog in which the ribose ring is opened at the 2',3'-positions (seco modification), the guanine base is protected at the N2 position with an isobutyryl (iBu) group, and the 5'-hydroxyl is masked with a dimethoxytrityl (DMT) group. These modifications stabilize the compound and allow controlled reactivity during solid-phase oligonucleotide synthesis. It is used as a synthetic intermediate for incorporating modified guanine residues into oligonucleotides for research and therapeutic applications.
CAT: BRP-02746
CAS: 1044505-27-2
Molecular Formula: C35H39N5O8
Molecular Weight: 657.71
Purity: ≥98%
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Density: 1.319±0.14 g/cm3
InChIKey: BAXLCPMSHNZUPB-URLMMPGGSA-N
CanonicalSMILES: CC(C)C(=O)NC1=NC2=C(C(=O)N1)N=CN2[C@@H](CO)O[C@@H](CO)COC(C3=CC=CC=C3)(C4=CC=C(C=C4)OC)C5=CC=C(C=C5)OC
IUPAC Name: N-[9-[(1R)-1-[(2S)-1-[bis(4-methoxyphenyl)-phenylmethoxy]-3-hydroxypropan-2-yl]oxy-2-hydroxyethyl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide
InChI: InChI=1S/C35H39N5O8/c1-22(2)32(43)38-34-37-31-30(33(44)39-34)36-21-40(31)29(19-42)48-28(18-41)20-47-35(23-8-6-5-7-9-23,24-10-14-26(45-3)15-11-24)25-12-16-27(46-4)17-13-25/h5-17,21-22,28-29,41-42H,18-20H2,1-4H3,(H2,37,38,39,43,44)/t28-,29+/m0/s1
Synonyms: Propanamide, N-[9-[(1R)-1-[(1S)-2-[bis(4-methoxyphenyl)phenylmethoxy]-1-(hydroxymethyl)ethoxy]-2-hydroxyethyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methyl-; N-(9-((R)-1-(((S)-1-(Bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)-2-hydroxyethyl)-6-oxo-6,9-dihydro-3H-purin-2-yl)isobutyramide; 5'-O-DMT-2',3'-Seco-N2-Isobutyryl Guanosine; N2-Isobutyryl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secoguanosine

5'-O-DMT-2',3'-seco-β-uracil

Description: 5'-O-DMT-2',3'-seco-β-uracil is a modified nucleoside derivative where the ribose ring is cleaved at the 2',3'-positions (seco modification), the nucleobase is uracil in its β-anomeric form, and the 5'-hydroxyl group is protected with a 4,4'-dimethoxytrityl (DMT) group. This structure serves as a protected synthetic intermediate in nucleic acid chemistry, enabling incorporation of uracil-based residues into oligonucleotides, particularly in studies of RNA structure, stability, and therapeutic oligonucleotide design.
CAT: BRP-02747
CAS: 251943-33-6
Molecular Formula: C30H32N2O8
Molecular Weight: 548.58
Purity: ≥98%
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Density: 1.290±0.06 g/cm3
InChIKey: XSPAPRULJFAPFE-XTEPFMGCSA-N
CanonicalSMILES: COC1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=C(C=C3)OC)OC[C@H](CO)O[C@H](CO)N4C=CC(=O)NC4=O
IUPAC Name: 1-[(1R)-1-[(2S)-1-[bis(4-methoxyphenyl)-phenylmethoxy]-3-hydroxypropan-2-yl]oxy-2-hydroxyethyl]pyrimidine-2,4-dione
InChI: InChI=1S/C30H32N2O8/c1-37-24-12-8-22(9-13-24)30(21-6-4-3-5-7-21,23-10-14-25(38-2)15-11-23)39-20-26(18-33)40-28(19-34)32-17-16-27(35)31-29(32)36/h3-17,26,28,33-34H,18-20H2,1-2H3,(H,31,35,36)/t26-,28+/m0/s1
Synonyms: 2,4(1H,3H)-Pyrimidinedione, 1-[(1R)-1-[(1S)-2-[bis(4-methoxyphenyl)phenylmethoxy]-1-(hydroxymethyl)ethoxy]-2-hydroxyethyl]-; 5'-O-(4,4'-Dimethoxytrityl)-2',3'-secouridine; 1-((R)-1-(((S)-1-(Bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)-2-hydroxyethyl)pyrimidine-2,4(1H,3H)-dione; 5'-O-DMT-2',3'-Seco Uridine

5'-O-DMT-2',3'-Seco-2'-O-Benzoyl-N4-Acetyl Cytidine

Description: 5'-O-DMT-2',3'-Seco-2'-O-Benzoyl-N4-Acetyl Cytidine is a nucleoside analog in which the ribose ring is opened at the 2',3'-positions (seco modification), with the 2'-hydroxyl protected by a benzoyl (Bz) group, the cytosine base protected at the N4 position with an acetyl (Ac) group, and the 5'-hydroxyl masked with a dimethoxytrityl (DMT) group. These modifications ensure stability and controlled reactivity during solid-phase oligonucleotide synthesis. This compound is used as a synthetic intermediate for incorporating modified cytidine residues into oligonucleotides for research and therapeutic applications.
CAT: BRP-02748
CAS: 120329-55-6
Molecular Formula: C39H39N3O9
Molecular Weight: 693.75
Purity: ≥95%
Appearance: White solid
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InChIKey: LWTHPUGLGJJZKY-PUDHBBIYSA-N
CanonicalSMILES: OC[C@H](O[C@H](COC(C1=CC=CC=C1)=O)N2C(N=C(NC(C)=O)C=C2)=O)COC(C3=CC=CC=C3)(C4=CC=C(OC)C=C4)C5=CC=C(OC)C=C5
InChI: InChI=1S/C39H39N3O9/c1-27(44)40-35-22-23-42(38(46)41-35)36(26-49-37(45)28-10-6-4-7-11-28)51-34(24-43)25-50-39(29-12-8-5-9-13-29,30-14-18-32(47-2)19-15-30)31-16-20-33(48-3)21-17-31/h4-23,34,36,43H,24-26H2,1-3H3,(H,40,41,44,46)/t34-,36+/m0/s1
Synonyms: 5'-O-DMT-2'-O-benzoyl-N4-acetyl-2',3'-seco-β-cytosine; (R)-2-(4-Acetamido-2-oxopyrimidin-1(2H)-yl)-2-(((S)-1-(bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)ethyl benzoate; N4-Acetyl-2'-O-benzoyl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secocytidine

5'-O-DMT-2',3'-Seco-2'-O-Benzoyl-N2-Isobutyryl Guanosine

Description: 5'-O-DMT-2',3'-Seco-2'-O-Benzoyl-N2-Isobutyryl Guanosine is a nucleoside analog in which the ribose ring is opened at the 2',3'-positions (seco modification), with the 2'-hydroxyl protected by a benzoyl (Bz) group, the guanine base protected at the N2 position with an isobutyryl (iBu) group, and the 5'-hydroxyl masked with a dimethoxytrityl (DMT) group. These protecting groups provide stability and controlled reactivity during solid-phase oligonucleotide synthesis. This compound is used as a synthetic intermediate for incorporating modified guanosine residues into oligonucleotides for research and therapeutic applications.
CAT: BRP-02749
CAS: 1120329-60-3
Molecular Formula: C42H43N5O9
Molecular Weight: 761.82
Purity: ≥95%
Appearance: White solid
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Density: 1.294±0.14 g/cm3
InChIKey: GBJOMCGXKQOKOM-OIDHKYIRSA-N
CanonicalSMILES: OC[C@H](O[C@H](COC(C1=CC=CC=C1)=O)N2C(N=C(NC(C(C)C)=O)NC3=O)=C3N=C2)COC(C4=CC=CC=C4)(C5=CC=C(OC)C=C5)C6=CC=C(OC)C=C6
InChI: InChI=1S/C42H43N5O9/c1-27(2)38(49)45-41-44-37-36(39(50)46-41)43-26-47(37)35(25-54-40(51)28-11-7-5-8-12-28)56-34(23-48)24-55-42(29-13-9-6-10-14-29,30-15-19-32(52-3)20-16-30)31-17-21-33(53-4)22-18-31/h5-22,26-27,34-35,48H,23-25H2,1-4H3,(H2,44,45,46,49,50)/t34-,35+/m0/s1
Synonyms: Propanamide, N-[9-[(1R)-2-(benzoyloxy)-1-[(1S)-2-[bis(4-methoxyphenyl)phenylmethoxy]-1-(hydroxymethyl)ethoxy]ethyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-2-methyl-; (R)-2-(((S)-1-(Bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)-2-(2-isobutyramido-6-oxo-1,6-dihydro-9H-purin-9-yl)ethyl benzoate; 5'-O-DMT-2'-O-benzoyl-N2-isobutyryl-2',3'-seco-β-guanine; N2-Isobutyryl-2'-O-benzoyl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secoguanosine

5'-O-DMT-2',3'-Seco-2'-O-Benzoyl Uridine

Description: 5'-O-DMT-2',3'-Seco-2'-O-Benzoyl Uridine is a nucleoside analog in which the ribose ring is opened at the 2',3'-positions (seco modification), the 2'-hydroxyl is protected with a benzoyl (Bz) group, and the 5'-hydroxyl is masked with a dimethoxytrityl (DMT) group. These protecting groups provide stability and controlled reactivity during solid-phase oligonucleotide synthesis. This compound is used as a synthetic intermediate for incorporating modified uridine residues into oligonucleotides for research and therapeutic applications.
CAT: BRP-02750
CAS: 251943-34-7
Molecular Formula: C37H36N2O9
Molecular Weight: 652.70
Purity: ≥95%
Appearance: White solid
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InChIKey: INQCHBJFCVVVIU-UZNNEEJFSA-N
CanonicalSMILES: COC1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=C(C=C3)OC)OC[C@H](CO)O[C@H](COC(=O)C4=CC=CC=C4)N5C=CC(=O)NC5=O
IUPAC Name: [(2R)-2-[(2S)-1-[bis(4-methoxyphenyl)-phenylmethoxy]-3-hydroxypropan-2-yl]oxy-2-(2,4-dioxopyrimidin-1-yl)ethyl] benzoate
InChI: InChI=1S/C37H36N2O9/c1-44-30-17-13-28(14-18-30)37(27-11-7-4-8-12-27,29-15-19-31(45-2)20-16-29)47-24-32(23-40)48-34(39-22-21-33(41)38-36(39)43)25-46-35(42)26-9-5-3-6-10-26/h3-22,32,34,40H,23-25H2,1-2H3,(H,38,41,43)/t32-,34+/m0/s1
Synonyms: 2'-O-Benzoyl-5'-O-(4,4'-dimethoxytrityl)-2',3'-secouridine; (R)-2-(((S)-1-(Bis(4-methoxyphenyl)(phenyl)methoxy)-3-hydroxypropan-2-yl)oxy)-2-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)ethyl benzoate; 5'-O-DMT-2',3'-Seco-2'-O-U(bz); 5'-O-DMT-2'-O-benzoyl-2',3'-seco-β-uracil

5'-O-DMT-N2-dimethylformamide-2'-O-(2-methoxyethyl)guanosine

Description: 5'-O-DMT-N2-dimethylformamide-2'-O-(2-methoxyethyl)guanosine is a chemically modified guanosine nucleoside in which the 5'-hydroxyl is protected by a 4,4'-dimethoxytrityl (DMT) group, the guanine base carries an N2-dimethylformamide (dmf) protecting group, and the ribose sugar is substituted at the 2'-hydroxyl with a 2-methoxyethyl (MOE) group. This type of derivative is used as a key phosphoramidite building block in solid-phase oligonucleotide synthesis, where the MOE modification enhances nuclease resistance and binding affinity, while the base and hydroxyl protections ensure selective reactivity during automated synthesis cycles.
CAT: BRP-02751
Molecular Formula: C37H42N6O8
Molecular Weight: 698.78
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InChIKey: JLHXJBGTLAFCQZ-QSYCCZFCSA-N
CanonicalSMILES: O[C@H]1[C@@H](OCCOC)[C@H](N2C=NC3=C2N=C(N=CN(C)C)NC3=O)O[C@@H]1COC(C4=CC=CC=C4)(C5=CC=C(OC)C=C5)C6=CC=C(OC)C=C6
IUPAC Name: N'-(9-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxy-3-(2-methoxyethoxy)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-N,N-dimethylformimidamide
InChI: InChI=1S/C37H42N6O8/c1-42(2)22-39-36-40-33-30(34(45)41-36)38-23-43(33)35-32(49-20-19-46-3)31(44)29(51-35)21-50-37(24-9-7-6-8-10-24,25-11-15-27(47-4)16-12-25)26-13-17-28(48-5)18-14-26/h6-18,22-23,29,31-32,35,44H,19-21H2,1-5H3,(H,40,41,45)/t29-,31-,32-,35-/m1/s1
Synonyms: N2-DMF-5'-O-DMTr-2'-O-MOE-rG; N2-Dimethylformamidine-5'-O-(4,4'-dimethoxytrityl)-2'-O-methoxyethyl-guanosine; 5'-O-DMT-N2-dimethylformamide-2'-O-methoxyethylguanosine; N2-Dimethylformamide-5'-O-(4,4'-dimethoxytrityl)-2'-O-(2-methoxyethyl)guanosine; 2'-O-MOE-5'-O-DMT-G(DMF); 5'-O-DMT-2'-O-MOE-N2-DMF-rG

5'-O-(4,4'-Dimethoxitrityl)-2'-O-(tert-butyldimethylsilyl)-N-benzoyl-5-methylcytidine

Description: 5'-O-(4,4'-Dimethoxitrityl)-2'-O-(tert-butyldimethylsilyl)-N-benzoyl-5-methylcytidine is a protected nucleoside derivative of 5-methylcytidine, in which the 5'-hydroxyl is masked with a 4,4'-dimethoxytrityl (DMT) group, the 2'-hydroxyl is protected by a bulky tert-butyldimethylsilyl (TBDMS) group, and the exocyclic N4-amino group of the base is protected with a benzoyl substituent. This compound serves as an intermediate or protected building block in chemical RNA synthesis, where the 5-methylcytidine modification enhances duplex stability and epigenetic relevance, while the protecting groups control site-selective reactivity during stepwise solid-phase assembly of oligonucleotides.
CAT: BRP-02752
CAS: 160107-13-1
Molecular Formula: C44H51N3O8Si
Molecular Weight: 777.98
Purity: ≥95%
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Density: 1.18±0.1 g/cm3
InChIKey: UANWHNFQIRMOOG-VBQUSUMGSA-N
CanonicalSMILES: CC1=CN(C(=O)N=C1NC(=O)C2=CC=CC=C2)[C@H]3[C@@H]([C@@H]([C@H](O3)COC(C4=CC=CC=C4)(C5=CC=C(C=C5)OC)C6=CC=C(C=C6)OC)O)O[Si](C)(C)C(C)(C)C
IUPAC Name: N-[1-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-3-[tert-butyl(dimethyl)silyl]oxy-4-hydroxyoxolan-2-yl]-5-methyl-2-oxopyrimidin-4-yl]benzamide
InChI: InChI=1S/C44H51N3O8Si/c1-29-27-47(42(50)46-39(29)45-40(49)30-15-11-9-12-16-30)41-38(55-56(7,8)43(2,3)4)37(48)36(54-41)28-53-44(31-17-13-10-14-18-31,32-19-23-34(51-5)24-20-32)33-21-25-35(52-6)26-22-33/h9-27,36-38,41,48H,28H2,1-8H3,(H,45,46,49,50)/t36-,37-,38-,41-/m1/s1
Synonyms: Cytidine, N-benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-; N-(1-((2R,3R,4R,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-((tert-butyldimethylsilyl)oxy)-4-hydroxytetrahydrofuran-2-yl)-5-methyl-2-oxo-1,2-dihydropyrimidin-4-yl)benzamide; N4-Benzoyl-2'-O-tert-butyldimethylsilyl-5'-O-DMT-5-methylcytidine; 5'-DMT-2'-tBDSilyl-5-methylcytidine (n-bz); 5'-DMT-2'-TBDMS-Bz-5-Me-rC; N4-Benzoyl-5'-O-[bis(4-methoxyphenyl)(phenyl)methyl]-2'-O-[tert-butyl(dimethyl)silyl]-5-methylcytidine; N4-Benzoyl-2'-O-(tert-butyldimethylsilyl)-5'-O-(4,4'-dimethoxytrityl)-5-methylcytidine

5'-O-(4,4'-Dimethoxitrityl)-2'-O-TBDMS-5-methyluridine

Description: 5'-O-(4,4'-Dimethoxitrityl)-2'-O-TBDMS-5-methyluridine is a protected nucleoside derivative of 5-methyluridine, in which the 5'-hydroxyl group is masked with a 4,4'-dimethoxytrityl (DMT) group and the 2'-hydroxyl group is protected by a tert-butyldimethylsilyl (TBDMS) group. It is used as a key intermediate in chemical RNA synthesis, where the 5-methyluridine modification contributes to enhanced base-pairing stability and biological relevance, while the protecting groups ensure selective reactivity during solid-phase oligonucleotide assembly.
CAT: BRP-02753
CAS: 145784-40-3
Molecular Formula: C37H46N2O8Si
Molecular Weight: 674.86
Purity: 95%
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Density: 1.23±0.1 g/cm3
InChIKey: JPCJMZCIINYVKA-UKNNOAMWSA-N
CanonicalSMILES: CC1=CN(C(=O)NC1=O)[C@H]2[C@@H]([C@@H]([C@H](O2)COC(C3=CC=CC=C3)(C4=CC=C(C=C4)OC)C5=CC=C(C=C5)OC)O)O[Si](C)(C)C(C)(C)C
IUPAC Name: 1-[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-3-[tert-butyl(dimethyl)silyl]oxy-4-hydroxyoxolan-2-yl]-5-methylpyrimidine-2,4-dione
InChI: InChI=1S/C37H46N2O8Si/c1-24-22-39(35(42)38-33(24)41)34-32(47-48(7,8)36(2,3)4)31(40)30(46-34)23-45-37(25-12-10-9-11-13-25,26-14-18-28(43-5)19-15-26)27-16-20-29(44-6)21-17-27/h9-22,30-32,34,40H,23H2,1-8H3,(H,38,41,42)/t30-,31-,32-,34-/m1/s1
Synonyms: Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-; 2'-O-tert-Butyldimethylsilyl-5'-O-DMT-thymine; 1-((2R,3R,4R,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-((tert-butyldimethylsilyl)oxy)-4-hydroxytetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione; 5'-DMT-2'-tBDSilyl thymine; 5'-O-DMT-2'-O-TBDMS-5-methyluridine; 5'-O-(4,4'-Dimethoxytrityl)-2'-O-t-butyldimethylsilyl-5-methyluridine; 2'-O-(tert-Butyldimethylsilyl)-5'-O-(4,4'-dimethoxytrityl)-5-methyluridine; 5'-O-(4,4'-Dimethoxytrityl)-2'-O-[(1,1-dimethylethyl)-dimethylsilyl]-5-methyluridine

Frequently Asked Questions (FAQ)

What are nucleosides used for?

Nucleosides are base molecules used as starting materials for synthesizing nucleotides and phosphoramidites.

What is the difference between nucleosides and nucleotides?

Nucleosides lack phosphate groups, while nucleotides contain one or more phosphates required for enzymatic reactions.

Are nucleosides used directly in enzymatic reactions?

Nucleosides are typically chemically modified before being used in enzymatic workflows.

Can nucleosides be chemically modified?

Yes, modified nucleosides are widely used to introduce structural or functional changes in nucleic acids.

Why is nucleoside purity important?

High purity ensures correct downstream synthesis of nucleotides and phosphoramidites with predictable performance.

* Only for research. Not suitable for any diagnostic or therapeutic use.

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