Acetic acid (E)-(2S,5S,6S,13S)-17-formyl-13-hydroxy-6-methyl-tricyclo[13.2.2.0
2,6]nonadeca-1(18),9,15(19),16-tetraen-5-yl ester 在
咪唑 、
4-二甲氨基吡啶 、 sodium tetrahydroborate 、 4 A molecular sieve 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 0.67h,
生成
Acetic acid (E)-(2S,5S,6S,13S)-13-(tert-butyl-dimethyl-silanyloxy)-17-(tert-butyl-dimethyl-silanyloxymethyl)-6-methyl-tricyclo[13.2.2.02,6]nonadeca-1(18),9,15(19),16-tetraen-5-yl ester