中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2',5'-bis-O-(tert-butyldimethylsilyl)uridine | 54925-66-5 | C21H40N2O6Si2 | 472.729 |
尿嘧啶核苷 | uridine | 58-96-8 | C9H12N2O6 | 244.204 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3'-O-(tert-butyldimethylsilyl)uridine | 69504-11-6 | C15H26N2O6Si | 358.467 |
—— | 2',5'-bis-O-(tert-butyldimethylsilyl)uridine | 54925-66-5 | C21H40N2O6Si2 | 472.729 |
尿嘧啶核苷 | uridine | 58-96-8 | C9H12N2O6 | 244.204 |
—— | 2'-deoxy-2'-C-allyl-3'-O-(tert-butyldimethylsilyl)uridine | 913972-61-9 | C18H30N2O5Si | 382.532 |
—— | 2'-deoxy-2'-C-allyl-4'-C-hydroxymethyl-3',5'-di-O-(tert-butyldimethylsilyl)uridine | 913972-64-2 | C25H46N2O6Si2 | 526.821 |
—— | 2'-deoxy-2'-C-allyl-4'-C-hydroxymethyl-3'-O-(tert-butyldimethylsilyl)uridine | 913972-62-0 | C19H32N2O6Si | 412.558 |
—— | uridine 2'-methylphosphonate | 25383-77-1 | C10H15N2O8P | 322.211 |
—— | (2R,3S,4R,5R)-3-[tert-butyl(dimethyl)silyl]oxy-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-5-(2,4-dioxopyrimidin-1-yl)-4-prop-2-enyloxolane-2-carbaldehyde | 913972-69-7 | C25H44N2O6Si2 | 524.805 |
—— | 2'-deoxy-2'-C-allyl-4'-C-benzoyloxymethyl-3'-O-(tert-butyldimethylsilyl)uridine | 913972-63-1 | C26H36N2O7Si | 516.667 |
—— | 2'-O-Tetrahydrofuranyluridine | 90865-74-0 | C13H18N2O7 | 314.295 |
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.