110785-22-3 1H-Pyrido(3,4-b)indole, 2,3,4,9-tetrahydro-2-(1-piperidinylacetyl)-1-(3-pyridinyl)- 2,3,4,9-Tetrahydro-2-(1-piperidinylacetyl)-1-(3-pyridinyl)-1H-pyrido(3,4-b)indole