methyl hexadecahydro-3b-hydroxy-3c,6d,7-trimethyl-1,6-methano-1H-cyclopenta<3'',4''>pentaleno<2'',1'',6'':3',4',5'>pentaleno<6',1',2':5,6,1>pentaleno<1,2-b>oxirene-7-carboxylate 在
三氟化硼乙醚 作用下,
以
苯 为溶剂,
反应 1.0h,
以55%的产率得到methyl hexadecahydro-3-hydroxy-5b,7d,8-trimethyl-1,7-methanocyclopenta<3',4'>pentaleno<2',1',6':1,6,5>pentaleno<6'',1'',2'':2,3,4>pentaleno<1,2-b>oxirene-8-carboxylate