5-(2,2-dimethylpropyl)-5-prop-2-enyl-1,3-diazinane-2,4,6-trione 5-allyl-5-(2,2-dimethylpropyl)hexahydropyrimidine-2,4,6-trione 5-allyl-5-neopentyl-barbituric acid Barbituric acid, 5-allyl-5-neopentyl- Nealbarbital