(27E,29E,31E,32E,35R,36S,37R,38R,40S,42S,44S,45S,46R,47R,57R)-46,57-dihydroxy-44,47-dimethoxy-45-[(1R)-2-[(1S,3R,4R)-3-methoxy-4-phenoxycarbothioyloxycyclohexyl]-1-methylethyl]-35,36,37,38,48,49-hexamethyl-66,67-dioxa-58-azatricyclohexatriaconta-27,29,31(48),32(49)-tetraene-50,51,52,53,54-pentone 在
三乙基硼 、
三(三甲基硅基)硅烷 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
反应 1.0h,
以50%的产率得到(23E,25E,27E,28E,30R,31S,32R,33R,35S,37S,38S,39S,40R,41R,50R)-40,50-dihydroxy-38,41-dimethoxy-39-[(1R)-2-[(1S,3S)-3-methoxycyclohexyl]-1-methylethyl]-30,31,32,33,42,43-hexamethyl-59,60-dioxa-51-azatricyclohexatriaconta-23,25,27(42),28(43)-tetraene-44,45,46,47,48-pentone