1-Piperazineacetamide, 4-(4-amino-6,7-dimethoxy-2-quinazolinyl)-N-(2,6-dimethylphenyl)-, monohydrochloride 122001-66-5 2-(4-(2,6-Dimethylacetanilide)piperazin-1-yl)-4-amino-6,7-dimethoxyquinazoline hydrochloride