2H-Pyrido(3,2-b)-1,4-oxazine, 3,4-dihydro-4-(2-(4-morpholinyl)ethyl)-, trihydrochloride 3,4-Dihydro-4-(2-(4-morpholinyl)ethyl)-2H-pyrido(3,2-b)-1,4-oxazine trihydrochloride 86979-78-4