(1R,3aR,5R,7aR,1'R,4'S)-5,6,7,7a-tetrahydro-5-(diethylphosphonoacetoxy)-7a-methyl-1-(1',4',5'-trimethylhexyl)-3aH-indan-4-one 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 、
lithium chloride 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以86%的产率得到(3aR,5aR,6R,8aR,1'R,4'S)-3a,3b,4,5,5a,7,8,8a-octahydro-5a-methyl-6-(1',4',5'-trimethylhexyl)-2H-indeno[5,4-b]furan-2-one