2-(4-(3-(Furan-3-yl)-acryloyl)piperazin-1-yl)-4-amino-6,7-dimethoxyquinazoline 70842-93-2 Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-(3-(3-furanyl)-1-oxo-2-propenyl)-, hydrochloride