2, {4-Diaza-8-silaspiro[5.5]undecane-1,3,5-trione,} 8,8,11-trimethyl- 52-55-1 8,8,11-Trimethyl-2,4-diaza-8-silaspiro[5.5]undecane-1,3,5-trione AIDS-126042 AIDS126042 NSC96857 {2,4-Diaza-8,8,11-trimethyl-8-silaspiro[5.5]undecane-1,3,} 5-trione