(3a'S,5'R,5a'S,8'R,9'S,10a'S)-2',2',5'-trimethyl-9'-(2-methylallyl)-4-methylenedecahydrospiro[cyclohexane-1,10'-[5a,8]methanocyclopenta[c]azulene] 在
吡啶 、
二苯基二硒醚 、
meta-iodoxybenzoic acid 作用下,
以
甲苯 为溶剂,
反应 10.0h,
以85%的产率得到(3a'S,5'R,5a'S,8'R,9'S,10a'S)-2',2',5'-trimethyl-9'-(2-methylallyl)-4-methylene-1',2',3',3a',4',5',6',7',8',9'-decahydrospiro[cyclohexane-1,10'-[5a,8]methanocyclopenta[c]azulene]-2,5-diene