ent-2α,3α-Dihydroxy-16-oxo-17,20-bisnorgibberell-1(10)-ene-7,19-dioic acid 7-methyl ester 在
间氯过氧苯甲酸 作用下,
以
氯仿 为溶剂,
反应 2.0h,
以118 mg的产率得到methyl (1S,2S,3R,4R,4aR,4bR,7R,9aR,10S,10aR)-2,3,4-trihydroxy-1-methyl-8,13-dioxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylate