1 QUK 8-azanyl-4-(3-azanylpropoxy)quinoline-2-carboxylic acid 1.000 2 QUJ 8-azanyl-4-(2-methylpropoxy)quinoline-2-carboxylic acid 0.900 3 9JV 8-azanyl-4-methoxy-quinoline-2-carboxylic acid 0.842 4 QVE 8-azanyl-4-(2-hydroxy-2-oxoethyloxy)quinoline-2-carboxylic acid 0.810 5 QCL 8-azanyl-4-(2-ethylbutoxy)quinoline-2-carbaldehyde 0.773 6 QOL 8-azanyl-4-[2-(hydroxymethyl)-3-oxidanyl-propoxy]quinoline-2-carbaldehyde 0.773 7 QVS 8-azanyl-4-oxidanyl-quinoline-2-carboxylic acid 0.700