4-((2,2-Dimethylpropionyl)amino)butyric acid 4-Pivalamidobutyric acid 69542-93-4 Butanoic acid, 4-((2,2-dimethyl-1-oxopropyl)amino)- EINECS 274-038-3 N-Trimethylacetyl-4-aminobutyric acid Pivagabine Pivagabine [INN]