30152-60-4 5',6',7',8'-Tetrahydrospiro(cyclohexane-1,2'(1'H)-quinazolin)-4'(3'H)-one BRN 0747193 Spiro(cyclohexane-1,2'(1'H)-quinazolin)-4'(3'H)-one, 5',6',7',8'-tetrahydro-