2-[2-[8-benzyloxy-9-benzyloxymethyl-3-(tert-butyl-dimethyl-silanyloxy)-2,3,4,7,8,9-hexahydro-oxonin-2-yl]-1-(4-methoxy-benzyloxy)-ethyl]-7-(4-bromo-benzyloxy)-6-(4-bromo-benzyloxymethyl)-2,9-dimethyl-decahydro-1,5-dioxa-benzocycloocten-3-ol 在
戴斯-马丁氧化剂 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以70%的产率得到2-[2-[8-benzyloxy-9-benzyloxymethyl-3-(tert-butyl-dimethyl-silanyloxy)-2,3,4,7,8,9-hexahydro-oxonin-2-yl]-1-(4-methoxy-benzyloxy)-ethyl]-7-(4-bromo-benzyloxy)-6-(4-bromo-benzyloxymethyl)-2,9-dimethyl-octahydro-1,5-dioxa-benzocycloocten-3-one