(S)-1-isobutyrylpyrrolidine-2-carboxylic acid; Captopril Desmercapto Impurity ; (2S)-1-(2-Methylpropanoyl)pyrrolidine-2-carboxylic acid
(S)-1-isobutyrylpyrrolidine-2-carboxylic acid; Captopril Desmercapto Impurity ; (2S)-1-(2-Methylpropanoyl)pyrrolidine-2-carboxylic acid