英文别名Tadalafil Impurity 8; Tadalafil impurity 10; (1S,3R)-1-(1,3-Benzodioxol-5-yl)-2-(2-chloroacetyl)-2,3,4,9-tetrahydro1H-pyrido[3,4-b]indole-3-carboxylic Acid Methyl Ester; 1H-Pyrido[3,4-b]indole-3-carboxylic acid,1-(1,3-benzodioxol-5-yl)-2-(chloroacetyl)-2,3,4,9-tetrahydro-, methylester, (1S,3R)- 
