(3S,6R,7S,8S,12Z,15S,16E)-1,3,7,15-tetrakis(tert-butyldimethylsilyloxy)-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)heptadeca-12,16-dien-5-one 在
camphor-10-sulfonic acid 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 4.0h,
以99%的产率得到(3S,6R,7S,8S,12Z,15S,16E)-3,7,15-tris(tert-butyldimethylsilyloxy)-1-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)heptadeca-12,16-dien-5-one