4-[4-[2-(3,4-difluorophenyl)ethyl]piperazin-1-yl]-5-(pyridin-4-ylmethyl)pyrimido[5,6-b]indole-9-carboxamide
4-[4-[2-(3,4-difluorophenyl)ethyl]piperazin-1-yl]-5-(4-pyridylmethyl)pyrimido[5,6-b]indole-9-carboxamide
4-[4-[2-(3,4-difluorophenyl)ethyl]-1-piperazinyl]-5-(4-pyridylmethyl)-9-pyrimido[5,6-b]indolecarboxamide