2,2,2-三氯代亚氨逐乙酸-4-甲氧基苄酯 、
Propionic acid (11E,13E)-(4R,5R,6S,7R,9R,16R)-7-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-6-hydroxy-5-methoxy-9,16-dimethyl-2,10-dioxo-oxacyclohexadeca-11,13-dien-4-yl ester 在
三氟甲磺酸 作用下,
以
乙醚 为溶剂,
反应 0.17h,
以63%的产率得到Propionic acid (11E,13E)-(4R,5S,7R,9R,16R)-7-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-5-methoxy-6-(4-methoxy-benzyloxy)-9,16-dimethyl-2,10-dioxo-oxacyclohexadeca-11,13-dien-4-yl ester