1 EQH Cis-4-[3-amino-6-(3-cyclopropylthiophen-2-yl)pyrazin-2-yl]cyclohexanecarboxylic acid 1.000 2 XK3 4-[3-amino-6-(3-ethylthiophen-2-yl)pyrazin-2-yl]cyclohexane-1-carboxylic acid 0.808 3 3DV 4-[3-amino-6-(3-hydroxyphenyl)pyrazin-2-yl]benzoic acid 0.741 4 3DL 4-[6-(3-hydroxyphenyl)pyrazin-2-yl]benzoic acid 0.704