Acetic acid (1S,3S,6R)-6-methyl-1-((3E,7E)-7-methyl-trideca-3,7-dien-11-ynyl)-7-oxa-bicyclo[4.1.0]hept-3-yl ester 在
碳酸乙烯酯 、
四氯化锡 、
potassium carbonate 作用下,
生成 Acetic acid (3R,5R,8R,9R,10S,13R,14R)-17-acetyl-5-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester