中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (1S,13R,15R,16R,17R)-15-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-16,17-bis(phenylmethoxy)-2,11,14-trioxatricyclo[11.3.1.04,9]heptadeca-4,6,8-triene | 1181209-08-4 | C56H60O11 | 909.086 |
—— | (1S,13R,15S,16R,17R)-15-(cyclohexylmethoxy)-16,17-bis(phenylmethoxy)-2,11,14-trioxatricyclo[11.3.1.04,9]heptadeca-4,6,8-triene | 1373318-90-1 | C35H42O6 | 558.715 |
—— | cyclohexylmethyl 2,4-di-O-benzyl-3,6-O-(o-xylylene)-β-D-glucopyranoside | 1181209-03-9 | C35H42O6 | 558.715 |
—— | (+)-menthyl 2,4-di-O-benzyl-3,6-O-o-xylylene-β-D-glucopyranoside | —— | C38H48O6 | 600.796 |
A 1,2-cis-(α)-selective glycosylation has been developed. An ortho-xylylene group bridged between 3-O and 6-O of d-glucosyl fluoride, which straddles the β-face of the pyranose ring, hinders the approach of glycosyl acceptors from that face. The determination of the three-dimensional structure of the bridged glucosyl fluoride, the optimization process of the reaction conditions oriented toward kinetic control to realize the high α-selectivity, and the scope of the reaction are described.