9-(Benzyloxy)-2-isopropyl-6-((1-(3-(trifluoromethyl)phenyl)cyclopentyl)methyl)-3,4-dihydro-1H-pyrazino[1,2-c]pyrimidine-1,8(2H)-dione 、
9-hydroxy-2-isopropyl-6-[1-(4-trifluoromethylphenyl)cyclopentylmethyl]-3,4-dihydro-2H-pyrazino[1,2-c]pyrimidine-1,8-dione 生成 9-Hydroxy-2-isopropyl-6-((1-(3-(trifluoromethyl)phenyl)cyclopentyl)methyl)-3,4-dihydro-1H-pyrazino[1,2-c]pyrimidine-1,8(2H)-dione