Methanesulfonic acid (1R,3S,7R,12S,13R)-12-(tert-butyl-dimethyl-silanyloxy)-7-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-13-(4-methoxy-benzyloxy)-2-oxa-tricyclo[8.3.0.0
1,3]tridec-10-ene-4,8-diyn-7-yl ester 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
二氯甲烷-D2 为溶剂,
生成
tert-Butyl-[(E)-(1R,3S,12S,13R)-7-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-13-(4-methoxy-benzyloxy)-2-oxa-tricyclo[8.3.0.01,3]trideca-6,10-diene-4,8-diyn-12-yloxy]-dimethyl-silane