1,3-Diazatricyclo(3.3.1.1(sup 3,7))decan-6-one, 2,2,5,7-tetramethyl- 108790-76-7 2,2,5,7-Tetramethyl-1,3-diazatricyclo(3.3.1.1(sup 3,7))decan-6-one