(R)-1-(p-Methoxybenzoyl)-3-hydroxy-2-pyrrolidinone (R)-3-Hydroxy-1-(4-methoxybenzoyl)-2-pyrrolidinone 2-Pyrrolidinone, 3-hydroxy-1-(4-methoxybenzoyl)-, (R)- 3-Hydroxyaniracetam 78340-51-9