在常温常压下保持稳定
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2'-O-(4-methoxybenzyl)-N2-benzoylguanosine | 80015-56-1 | C25H25N5O7 | 507.503 |
—— | 2',3',5',N2-tetrabenzoylguanosine | 28288-50-8 | C38H29N5O9 | 699.676 |
鸟苷 | GUANOSINE | 118-00-3 | C10H13N5O5 | 283.244 |
阿卡地新 | AICA riboside | 2627-69-2 | C9H14N4O5 | 258.234 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | N2-benzylguanosine | 71171-58-9 | C17H19N5O5 | 373.368 |
—— | N2-Benzoyl-5'-O-(tert-butyldimethylsilyl)guanosin | 72409-25-7 | C23H31N5O6Si | 501.615 |
—— | N2-Benzoyl-3'-O-(tert-butyldimethylsilyl)guanosin | 72409-44-0 | C23H31N5O6Si | 501.615 |
—— | 2'-O-(tetrahydropyranyl)-N2-benzoylguanosine | 60324-96-1 | C22H25N5O7 | 471.47 |
—— | 2'-O-(4-methoxybenzyl)-N2-benzoylguanosine | 80015-56-1 | C25H25N5O7 | 507.503 |
—— | N2-Benzoyl-2'-O-(tert-butyldimethylsilyl)guanosin | 72409-43-9 | C23H31N5O6Si | 501.615 |
—— | N2-Benzoyl-2',3',5'-tri-O-TBDMS-β-D-ribofuranosyl-guanosine | 72429-33-5 | C35H59N5O6Si3 | 730.14 |
—— | 2',3',5'-tri-O-(tert-butyldimethylsilyl)guanosine | 72409-24-6 | C28H55N5O5Si3 | 626.032 |
—— | 2-benzamido-7-(2-hydroxyethyl)purin-6-one | 125070-23-7 | C14H13N5O3 | 299.289 |
Procedures have been developed for the selective formation of (a) 2′,5′-silylated ribonucleosides and (b) 3′,5′-silylated ribonucleosides. These procedures also permit the selective silylation at either the 2′- or 3′-position of dimethoxytritylated ribonucleosides. The procedures involve nitrate or perchlorate ion catalysis for selective reaction at 2′-positions and a combination of silver ion and DABCO or 4-nitropyridine N-oxide for selective reaction at the 3′-position. During the course of this work a general and rapid procedure was developed for the preparation and isolation of the 5′-dimethoxytrityl derivatives of the four common ribonucleosides. Silver ion was found to have a marked effect on dimethoxytritylation reactions.