Stereoselective Synthesis of α-<i>C</i>-Glycopyranosyl Isoprenoid Compounds
作者:Anne Jégou、Carole Pacheco、Alain Veyrières
DOI:10.1055/s-1998-3125
日期:1998.1
Addition of the allylsilane Me3SiCH2C:CH2CH2CO2Me (3) to d-gluco and d-galactopyranosyl derivatives gives in good yields 3-(α-C-glycopyranosylmethyl)-but-3-enoates which can undergo oxidation to β-ketoesters, electrophile-promoted cyclizations or double bond migration.
Stereoselective synthesis of - and d-galactopyranosyl glycosides from an isoprenoid synthon
作者:Anne Jégou、Carole Pacheco、Alain Veyrières
DOI:10.1016/s0040-4020(98)00926-0
日期:1998.12
Addition of the allylsilane Me3SiCH2C:CH2CH2CO2Me to d-gluco and d-galactopyranosyl derivatives gives in good yields α-C-glycopyranosides which are easily converted into glycosylated β-keto esters, butenolide and dihydropyrone.
将烯丙基硅烷Me 3 SiCH 2 C:CH 2 CH 2 CO 2 Me加到d-葡萄糖和d-吡喃半乳糖基衍生物中,可以得到高产率的α - C-糖吡喃糖苷,它们很容易转化为糖基化的β-酮酸酯,丁烯内酯和二氢吡喃酮。