label: 4-(carboxy-(5-(4'-ethoxyphenyl)thiophene-2-sulfonylamino)methyl)piperidine-1-carboxylic acid isopropyl ester
label_lc: 4-(carboxy-(5-(4'-ethoxyphenyl)thiophene-2-sulfonylamino)methyl)piperidine-1-carboxylic acid isopropyl ester