21457-11-4 6',7',8',9'-Tetrahydro-1'-methylspiro(cyclohexane-1,5'-(5H)thiazolo(3,2-a)quinazoline) HBr Spiro(cyclohexane-1,5'-(5H)thiazolo(3,2-a)quinazoline), 6',7',8',9'-tetrahydro-1'-methyl-, monohydrobromide