4-苯基-1,2,4-三唑啉-3,5-二酮 、
10,10-dichloro-1,2,3,4-tetrahydro-4a,9a-methano-5H-benzocycloheptene 以
二氯甲烷 为溶剂,
以98%的产率得到rac-(5R,5aR,9aR,11R)-15,15-dichloro-2-phenyl-6,7,8,9,10,11-hexahydro-1H,5H-5,11-etheno-5a,9a-methanobenzo[d][1,2,4]triazolo[1,2-a][1,2]diazepine-1,3(2H)-dione