2-Oxo-4-phenylpyrrolidine-1-acetic acid hydrazide77472-71-0100 % similar 4-Phenyl-2-pyrrolidinone1198-97-641 % similar 3-Phenylglutaric acid4165-96-240 % similar (2-Phenylacetyl)hydrazine937-39-340 % similar Phenibut1078-21-339 % similar 5-Oxo-1-(phenylmethyl)-3-pyrrolidinecarboxylic acid5733-86-838 % similar 1-(Phenylmethyl)-2,4-imidazolidinedione6777-05-537 % similar Hydroxy(phenyl)acetic acid hydrazide2443-66-535 % similar (+)-3-Amino-3-phenylpropanoic acid13921-90-935 % similar (-)-3-Amino-3-phenylpropanoic acid40856-44-835 % similar Diphenylpropionic acid606-83-734 % similar (+)-Phenylsuccinic acid4036-30-034 % similar trans-1-Benzoyl-4-phenyl-L-proline120851-71-034 % similar Benzoylhydrazine613-94-533 % similar Nefiracetam77191-36-733 % similar (3R)-3-Amino-3-phenylpropanoic acid hydrochloride83649-48-333 % similar 3-Phenylbutyric acid4593-90-233 % similar Tropic acid529-64-633 % similar 2-Phenylbutyric acid90-27-732 % similar (-)-2-Phenylbutyric acid938-79-432 % similar