110187-43-4 3H-Pyrido(3,4-b)indole, 4,9-dihydro-6-methoxy-1-(3-pyridinyl)- 4,9-Dihydro-6-methoxy-1-(3-pyridinyl)-3H-pyrido(3,4-b)indole 6-Methoxy-1-(4-pyridinyl)-3,4-dihydro-beta-carboline