1	NNO	6-hydroxyisonicotinic acid N-oxide	1.000
2	OA7	6-hydroxypyridine-3-carboxylic acid	0.909
3	ID7	(3r)-piperidine-3-carboxylic acid	0.818
4	NIO	Nicotinic acid	0.818
5	VON	(3~{S},4~{S},5~{S},6~{R})-4,5,6-tris(oxidanyl)piperidine-3-carboxylic acid	0.769
6	5HN	5-hydroxypyridine-3-carboxylic acid	0.750
7	ES6	2-oxo-1,2-dihydropyridine-3-carboxylic acid	0.750
8	PHB	P-hydroxybenzoic acid	0.750
9	Y31	5-bromopyridine-3-carboxylic acid	0.750
10	PYF	3-pyridinylcarbinol	0.727