11H-Pyrido(2,1-b)quinazoline-8-carboxamide, 2-(1-methylethyl)-11-oxo-N-(4-(3-pyridinyl)butyl)-, dihydrochloride 2-Isopropyl-N-(4-(3-pyridyl)butyl)-11-oxo-11H-pyrido(2,1-b)quinazoline-8-carboxamide 2HCl 88939-82-6