(1R,2R,3R)-1-[(3R,4S,6S,14R,15S)-15-(2-hydroxyethyl)-3-methoxy-14-methyl-5,16-dioxa-8,12-dithiadispiro[5.0.57.46]hexadecan-4-yl]-3-methylpent-4-ene-1,2-diol 、
cis-1,4-二乙酰氧基-2-丁烯 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以65%的产率得到(4R,5R,6R,E)-5,6-dihydroxy-6-((7S,9S,10R,14S,15R)-14-(2-hydroxyethyl)-10-methoxy-15-methyl-8,13-dioxa-1,5-dithiadispiro[5.0.57.46]hexadecan-9-yl)-4-methylhex-2-en-1-yl acetate