methyl 3-((4R)-2-(but-3-ynyl)-4-methyl-6-oxocyclohexyl)propanoate 、
2-(ethylcarbamoylthio)ethanaminium 2,2,2-trifluoroacetate 在
溶剂黄146 、 platinum(II) chloride 作用下,
以
甲苯 为溶剂,
反应 9.5h,
以2.91 g的产率得到S-2-((9R)-9-methyl-5-methylene-2-oxo-3,4,5,6,7,7a,8,9-octahydrocyclopenta[e]quinolin-1(2H)-yl)ethyl ethylcarbamothioate