(N-tert-Butyl)-(phenyl-1-pyrrolidone-2-carboxamide-4) 39629-96-4 4-Pyrrolidinecarboxamide, N-(tert-butyl)-2-oxo-1-phenyl 5-22-06-00041 (Beilstein Handbook Reference) BRN 0407018 N-(tert-Butyl)-2-oxo-1-phenyl-4-pyrrolidinecarboxamide