(+/-)-(3aS,4R,11aS)-4,8-diphenyl-6-(trifluoromethyl)-3a,4,5,11a-tetrahydro-3H-cyclopenta[e]pyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidine 在
manganese(IV) oxide 作用下,
以
二氯甲烷 为溶剂,
以72%的产率得到4,8-diphenyl-6-(trifluoromethyl)-1H-cyclopenta[e]pyrido[2',3':3,4]pyrazolo[1,5-a]pyrimidine