(2R,4R,6R,7S,8R,9R)-2-Benzyloxy-9-(tert-butyl-dimethyl-silanyloxy)-7-hydroxy-4,6,8-trimethyl-2-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-undecan-5-one 在
3 A molecular sieve 、 lithium tri-t-butoxyaluminum hydride 、
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
乙醚 、
二氯甲烷 为溶剂,
反应 1.33h,
生成 {(1R,2R)-2-[(2R,4R,5S,6R)-6-{(1R,3R)-3-Benzyloxy-1-methyl-3-[(4R,5S,6R)-2,2,5-trimethyl-6-((S)-1-methyl-allyl)-[1,3]dioxan-4-yl]-butyl}-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-1-ethyl-propoxy}-tert-butyl-dimethyl-silane