13H-Pyrido(1',2':3,4)imidazo(2,1-b)quinazolin-13-one, 7,8,9,10,10a,11-hexahydro-, monohydrochloride 33047-33-5 7,8,9,10,10a,11-Hexahydro-13H-pyrido(1',2':3,4)imidazo(2,1-b)quinazolin-13-one hydrochloride