(3S,6R,7S,8S,12Z,15S)-4,4,8,12-tetramethyl-6-allyl-1,3,7,15-tetrakis-(tert-butyldimethylsilyloxy)-15-(2-methylbenzothiazol-5-yl)-pentadec-12-en-5-on 在
camphor-10-sulfonic acid 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 2.5h,
以82.2%的产率得到(3S,6R,7S,8S,12Z,15S)-4,4,8,12-tetramethyl-5-oxo-6-allyl-3,7,15-tris-(tert-butyldimethylsilyloxy)-15-(2-methylbenzothiazol-5-yl)-pentadec-12-en-1-ol