1 OD4 4-{5-[(3-aminopropyl)carbamoyl]thiophen-2-yl}-1-benzothiophene-2-carboxylic acid 1.000 2 OD1 4-{5-[(3-aminopropyl)carbamoyl]thiophen-2-yl}-1-benzothiophene-2-carboxamide 0.920