在
六氟异丙醇 、
甲醇 作用下,
以
二氯甲烷 为溶剂,
反应 0.17h,
以85%的产率得到(2R,3S,4S,5R,6S,7R,8E,10S,13S,14S,15S,16S,17S,18E,20S,21Z)-allyl-2,7,13,17-tetrakis(tert-butyldimethylsilyloxy)-16-hydroxymethyl-3-methoxy-15-(p-methoxybenzyloxy)-4,6,8,10,14,18,20-heptamethyl-11-oxo-5-triethylsilyloxytricosa-8,18,21-trienoate