Synonyms: | Taladafil impurity;Pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione, 6-(3,4-dimethoxyphenyl)-2,3,6,7,12,12a-hexahydro-2-methyl-, (6R,12aR)-;(6R,12aR)-6-(3,4-dimethoxyphenyl)-2-methyl-2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione |