英文别名Tadalafil Impurity 54; (6R,12aR)-2,3,6,7,12,12a-hexahydro-2-cyclopentyl-6-(3,4-methylenedioxyphenyl)-pyrazino[2',1',6,1]-pyrido[3,4-b]indole-1,4-dione; Pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione, 6-(1,3-benzodioxol-5-yl)-2-cyclopentyl-2,3,6,7,12,12a-hexahydro-, (6R,12aR)-; (6R,12aR)-6-(1,3-Benzodioxol-5-yl)-2-cyclopentyl-2,3,6,7,12,12a-hexahydropyrazino[1′,2′:1,6]pyrido[3,4-b]indole-1,4-dione; N-Desmethyl-N-cyclopentyl Tildenafil; Tildenafil Impurity 8; (6R,12aR)-2,3,6,7,12,12a-Hexahydro-2-cyclopentyl-6-(3,4-methylenedioxyphenyl)-pyrazino(2',1':6,1)pyrido(3,4-b)indole-1,4-dione; (6R,12aR)-2,3,6,7,12,12a-hexahydro-2-cyclopentyl-6-(3,4-methylenedioxyphenyl)-pyrazino[2',1':6,1]pyrido[3,4-b]indole-1,4-dione; (2R,8R)-2-(1,3-benzodioxol-5-yl)-6-cyclopentyl-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione; Pyrazino(1',2':1,6)pyrido(3,4-b)indole-1,4-dione, 6-(1,3-benzodioxol-5-yl)-2-cyclopentyl-2,3,6,7,12,12a-hexahydro-, (6R-trans)-; CYCLOPENTYLTADALAFIL; N-CYCLOPENTYL TADALAFIL; TRANS-CYCLOPENTYLTADALAFIL; (6R,12aR)-6-(1,3-Benzodioxol-5-yl)-2-cyclopentyl-2,3,6,7,12,12a-hexahydropyrazino[1a(2),2a(2):1,6]pyrido[3,4-b]indole-1,4-dione 
