ent-12-acetoxymethyl-3α,10β-dihydroxy-17-(2'-nitrophenylselenyl)-20-norgibberellane-7,19-dioic acid 7-methyl ester 19,10-lactone 在
水 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以97%的产率得到ent-17-(2'-nitrophenylselenyl)-3α,10β-dihydroxy-12-hydroxymethyl-20-norgibberellane-7,19-dioic acid 7-methyl ester 19,10-lactone