cis,syn,cis-tricyclo<8.4.0.02,7>tetradeca-3,5,8,11,13-pentaene 、
4-甲基-1,2,4-三吖啉-3,5-二酮 生成 rac-(5aR,7aS,14S,14aS,14bR)-2,11-dimethyl-5,5a,7a,8,14,14a,14b,15-octahydro-1H,10H-5,15:8,14-dietheno[1,2,4]triazolo[1',2':1,2]pyridazino[4,5-f][1,2,4]triazolo[1,2-b]phthalazine-1,3,10,12(2H,11H)-tetraone