1 DUL 5-(3-ethylsulfanylphenyl)thiophene-2-carboxamide 1.000 2 3VQ 5-(pyridin-2-yl)thiophene-2-carboxamide 0.722 3 JMG 5-phenylthiophene-2-carboxylic acid 0.722 4 KLE 5-phenylthiophene-2-carboximidamide 0.722