4-((2-carboxy-2-(arylamino)ethylcarbamoyl)methoxy)-2-(pyridin-2-ylaminomethyl)pyrrolidine-1-carboxylic acid aryl ester
4-((2-carboxy-2-(arylamino)ethylcarbamoyl)methoxy)-2-(pyridin-2-ylaminomethyl)pyrrolidine-1-carboxylic acid aryl ester