119377-10-5 1H-Pyrido(3,4-b)indole-3-carboxylic acid, 2,3,4,9-tetrahydro-1-(3-pyridinyl)-, 1-methylethyl ester Isopropyl 1-(3-pyridinyl)-2,3,4,9-tetrahydro-1H-pyrido(3,4-b)indole-3-carboxylate