(2a1S,5aR,7R,13aS,Z)-3,7,11,13a-tetramethyl-2,2a1,4,5a,6,7,8,10,13,13a-decahydro-5-oxacycloundeca[cd]inden-9(1H)-one 在
pyridinium chlorochromate 作用下,
以
苯 为溶剂,
反应 0.5h,
以57%的产率得到(2a1S,5aR,7R,13aS,Z)-3,7,11,13a-tetramethyl-1,2,2a1,5a,6,7,8,10,13,13a-decahydro-5-oxacycloundeca[cd]indene-4,9-dione