英文别名Tadalafil Impurity 23; methyl (1R,3R)-2-acetyl-1-(1,3-benzodioxol-5-yl)-1,3,4,9-tetrahydropyrido[3,4-b]indole-3-carboxylate; Tadalafil Impurity 42; Tadalafil Impurity X; Tadalafil-008-RR; Tadalafil-008-1R3R; 1H-Pyrido[3,4-b]indole-3-carboxylic acid, 2-acetyl-1-(1,3-benzodioxol-5-yl)-2,3,4,9-tetrahydro-, methyl ester, (1R,3R)- 
