1 QDD 2-(8-azanyl-2-methanoyl-quinolin-4-yl)ethanoic acid 1.000 2 9JC 4-(aminomethyl)-8-azanyl-quinoline-2-carbaldehyde 0.778 3 NLA Naphthalen-1-yl-acetic acid 0.722 4 QUA 8-hydroxy-4-(1-hydroxyethyl)quinoline-2-carboxylic acid 0.700