(2R,3R)-3-((S)-2,2-Dimethyl-[1,3]dioxolan-4-ylmethyl)-oxirane-2-carbaldehyde 在
tris(6,6,7,7,8,8-heptafluoro-2,2-dimethyl-3,5-octadionato)europium(III) 、
sodium hexamethyldisilazane 、
potassium carbonate 作用下,
以
甲醇 、
甲苯 为溶剂,
反应 24.0h,
生成 (Z)-6-{(2S,3S,4R,4aR,6R,7S,8aR)-4-Benzyloxy-7-(tert-butyl-dimethyl-silanyloxy)-6-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-3-hydroxy-octahydro-pyrano[3,2-b]pyran-2-yl}-1-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-hex-4-en-2-one