21457-23-8 6',7'-Dihydro-3',7'-dimethylspiro(cyclohexane-1,5'-(5H)thiazolo(3,2-a)pyrimidin)-7'-ol HCl Spiro(cyclohexane-1,5'-(5H)thiazolo(3,2-a)pyrimidin)-7'-ol, 6',7'-dihydro-3',7'-dimethyl-, monohydrochloride