L-Prolinamide7531-52-432 % similar Isobutyrohydrazide3619-17-832 % similar Alpha-ketoisovaleric acid759-05-732 % similar N-Acetylcysteine amide38520-57-931 % similar 2,2,5,5-Tetramethyl-3-pyrrolidinecarboxamide702-96-531 % similar 2-Phenylbutanamide90-26-631 % similar 3-Piperidinecarboxamide4138-26-531 % similar Mandelamide4410-31-531 % similar L-Serinamide hydrochloride65414-74-631 % similar Levetiracetam102767-28-231 % similar Alpha-ethyl-2-oxo-1-Pyrrolidineacetamide33996-58-631 % similar D-Phenylglycine amide6485-67-230 % similar Bicyclo(2.2.1)hept-5-ene-2-carboxamide95-17-030 % similar