1 UUS 4-bromo-1-(2-hydroxyethyl)pyridin-2(1h)-one 1.000 2 W3D (4-bromo-2-oxopyridin-1(2h)-yl)acetic acid 0.917 3 V3U 4-bromanyl-1-(2-methoxyethyl)pyridin-2-one 0.769 4 1LN 2-(2-aminopyridin-1-ium-1-yl)ethanol 0.750 5 WQ7 1-(2-aminoethyl)pyridin-2(1h)-one 0.750 6 HGQ 4-bromanyl-1~{H}-pyridin-2-one 0.727