6-Cyclohexyl-6,7-dihydro-4-(phenylmethyl)-2-(4-chlorophenyl)-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]pyrimidine-5,8-dione 、
6-cyclohexyl-4-(phenylcarbonylmethyl)-2-(4-chlorophenyl)-6,7-dihydro-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]pyrimidine-5,8-dione 、 6-Hexyl-6,7-dihydro-4-(phenylmethyl)-2-phenyl-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]-pyrimidine-5,8-dione 、
6-Hexyl-6,7-dihydro-4-(2-oxo-2-phenylethyl)-2-phenyl-4H-pyrazolo [1,5-a]-pyrrolo [3,4-d]-pyrimidine-5,8-dione 、 6-Hexyl-6,7-dihydro-4-(phenylmethyl)-2-(4-chlorophenyl)-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]-pyrimidine-5,8-dione 、 6-Hexyl-6,7-dihydro-4-(2-oxo-2-phenylethyl)-2-(4-chlorophenyl)-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]-pyrimidine-5,8-dione 生成
4-(benzoylmethyl)-6-cyclohexyl-6,7-dihydro-2-phenyl-4H-pyrazolo[1,5-a]pyrrolo[3,4-d]pyrimidine-5,8-dione