(2E,8E)-(1aR,4aR,7aR,10R,11aS)-4a,10-Dihydroxy-1,1,3,6,9-pentamethyl-1a,4a,7a,10,11,11a-hexahydro-1H-cyclopenta[a]cyclopropa[f]cycloundecene-4,7-dione 以
四氢呋喃 为溶剂,
生成 (2Z,8E)-(1aR,4aR,10R,11aR)-4a,10-Dihydroxy-1,1,3,6,9-pentamethyl-1a,4a,7a,10,11,11a-hexahydro-1H-cyclopenta[a]cyclopropa[f]cycloundecene-4,7-dione