(E)-3-((1S,4aR,7S,8aS,10aR)-1,4a,7-Trimethyl-7-vinyl-1,2,3,4,4a,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-propenal 在
lithium hydroxide 、 sodium hydride 作用下,
以
四氢呋喃 为溶剂,
生成 (2E,4E)-5-((1S,4aR,7S,8aS,10aR)-1,4a,7-Trimethyl-7-vinyl-1,2,3,4,4a,6,7,8,8a,9,10,10a-dodecahydro-phenanthren-1-yl)-penta-2,4-dienoic acid