108790-80-3 5',7'-Dimethylspiro(cyclohexane-1,2'-(1,3)diazatricyclo(3.3.1.1(sup 3,7))decan)-6'-one 5,7-Dimethyl-6-oxospiro(1,3-diazaadamantane-2,1'-cyclohexane) Spiro(cyclohexane-1,2'-(1,3)diazatricyclo(3.3.1.1(sup 3,7))decan)-6'-one, 5',7'-dimethyl-