中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,3,4,6-四苄基-D-吡喃葡萄糖 | 2,3,4,6-Tetra-O-benzyl-D-glucopyranose | 4132-28-9 | C34H36O6 | 540.656 |
2,3,4,6-四-o-苄基-D-吡喃葡萄糖 | 2,3,4,6-tetra-O-benzyl-D-glucopyranose | 6564-72-3 | C34H36O6 | 540.656 |
—— | methyl 2,3,4,6-tetra-O-benzyl α-D-glucopyranoside | 19488-61-0 | C35H38O6 | 554.683 |
甲基 2,3,4,6-四-O-苄基-D-吡喃葡萄糖苷 | methyl 2,3,4,6-tetra-O-benzyl-D-glucopyranoside | 84799-77-9 | C35H38O6 | 554.683 |
甲基 2,3,4,6-O-四苄基-alpha-D-吡喃葡萄糖苷 | methyl 2,3,4,6-tetra-O-benzyl-α-D-glucopyranoside | 17791-37-6 | C35H38O6 | 554.683 |
2,3,4,6-四-O-苯甲基-β-D-异丙基吡喃葡萄糖苷 | isopropyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside | 114967-51-0 | C37H42O6 | 582.737 |
—— | pent-4-enyl 2,3,4,6-tetra-O-benzyl-D-glucopyranoside | 134003-35-3 | C39H44O6 | 608.775 |
—— | tert-butyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside | —— | C38H44O6 | 596.764 |
—— | propargyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside | 194088-16-9 | C37H38O6 | 578.705 |
—— | allyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranoside | —— | C37H40O6 | 580.721 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,3,4,6-四-o-苄基-D-吡喃葡萄糖 | 2,3,4,6-tetra-O-benzyl-D-glucopyranose | 6564-72-3 | C34H36O6 | 540.656 |
—— | (2R)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)glycerol | 95335-94-7 | C37H42O8 | 614.736 |
—— | (2S)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)glycerol | 156832-48-3 | C37H42O8 | 614.736 |
—— | methyl 2,3,4,6-tetra-O-benzyl-β-D-glucopyranosyl-(1-6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside | —— | C62H66O11 | 987.199 |
—— | methyl O-2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl-(1->6)-2,3,4-tri-O-benzyll-α-D-glucopyranoside | —— | C62H66O11 | 987.199 |
—— | (2S)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)-2,3-O-isopropylideneglycerol | 156925-78-9 | C40H46O8 | 654.8 |
—— | (2R)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)-2,3-O-isopropylideneglycerol | 95335-92-5 | C40H46O8 | 654.8 |
—— | (2S)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)-3-O-palmitoylglycerol | 156832-43-8 | C53H72O9 | 853.149 |
—— | (2R)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)-2-O-palmitoylglycerol | 156832-42-7 | C53H72O9 | 853.149 |
—— | (2S)-1-O-(2,3,4,6-Tetra-O-benzyl-β-D-glucopyranosyl)-2-O-palmitoylglycerol | 156832-51-8 | C53H72O9 | 853.149 |
A new glycosylation method promoted by visible light with 3,5-dimethoxyphenyl glycoside as the donor was developed.
一种以3,5-二甲氧基苯基糖苷为供体的可见光促进糖基化方法被开发出来。
Hydrolysis of methyl 6-chloro-6-deoxy-2,3,4-tri-O-methyl-α-D-glucopyranoside (19b) and Swern oxidation of the resulting anomeric hemiacetals (20) gave 6-chloro-6-deoxy-2,3,4-tri-O-methyl-D-glucono-1,5-lactone (21), treatment of which with 1,2-bis( trimethylsilyloxy )ethane in the presence of trimethylsilyl trifluoromethanesulfonate gave 6-chloro-1,6-dideoxy-1,1-ethylenedioxy-2,3,4-tri-O-methyl-D-glucopyranose (23a). Conversion of (23a) into the corresponding 6-iodo compound (23b) and treatment of this with 1,8-diazabicyclo[5.4.0]undec-7-ene afforded the enolic ortho ester 1,6-dideoxy-1,1-ethylenedioxy-2,3,4-tri-O-methyl-D-xylo-hex-5-enopyranose (26). Reaction of (26) with methylmagnesium iodide, or with titanium tetrachloride, gave (1R,6S,7R,8R,9S)-7,8,9-trimethoxy-6-methyl-2,5-dioxabicyclo[4.3.1]decan-1-ol (34), or (2S,3R,4R)-5,5-ethylenedioxy-2,3,4-trimethoxycyclohexanone (28), respectively.