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 Pyridoxal-5-phosphate monohydrate N1-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-1,3-propanediamine 1-Acetonylpyridinium chloride 1-Oxynicotinamide
 4-Chloro-2-picoline L-Mimosine 2-Hydroxy-5-nitro-3-picoline Boc-(R)-3-Amino-4-(4-pyridyl)butanoic acid
 1-(2-Ethoxy-2-oxoethyl)pyridinium bromide Boc-L-4-pyridylalanine Phenyl-2-pyridylacetonitrile 2-Mercapto-4,5,6-trimethylnicotinonitrile
 2-Phenoxynicotinonitrile 2-(tert-butoxycarbonylamino)pyridine-5-boronic acid, pinacol ester 4-Bromonicotinaldehyde 2,6-Dichloronicotinic acid
 3,5-Dichloroisonicotinic acid 2-(Methylsulfanyl)nicotinic acid 6-Methoxynicotinic acid methyl ester 4-(4-Pyridyl)benzoic acid
 4-(Pyridin-2-yl)benzoic acid Imidazo[1,2-a]pyridine-2-carbaldehyde Ethyl 2-pyridylacetate 6-Chloro-5-nitro methyl nicotinate
 5-Fluoro-2-methoxynicotinaldehyde 5-Fluoro-2-methoxynicotinic acid 2-(3,4-Dimethoxyphenyl)imidazo[1,2-a]pyridine-3-carbaldehyde 2-(5-Ethyl-2-pyridyl)ethanol
 3-Pyridyl acetic acid 1, 4-Dimethyl-3-cyano-6-hydroxypyridone 2-Hydroxyisonicotinic acid 2-Methyl-3-pyridinylboronic acid
 Ethyl 4-pyridylacetate 3-Pyridin-4-yl-propionic acid 3-Pyridin-2-yl-propionic acid 2-Amino-5-nitronicotinic acid ethyl ester
 4-(4-Pyridyl)benzaldehyde 3-(2-Pyridinyl)benzaldehyde 3-Pyrid-4-ylbenzaldehyde 5-Nitro-2-(2-pyridylthio)benzaldehyde
 4-(6-Bromopyridin-2-yl)benzaldehyde 2-p-Tolyl imidazo[1,2-a]pyridine-3-carbaldehyde 2-(3-Hydroxycarbonyl-6-pyridyl)malondialdehyde 4-Formyl-1-methylpyridinium benzenesulfonate
 4-(2-Pyridinyl)benzaldehyde 2-(Methyl-2-pyridylamino)ethanol 6-(Chloromethyl)-2-[5-(trifluoromethyl)-2-pyridyl]pyrimidin-4-ol 1-Ethyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-benzoylpyridine
 Pyridoxal hydrochloride tert-Butyl 3-(hydroxymethyl)tetrahydro-1(2H)-pyridinecarboxylate [2-(4-Methyl-2-phenylpiperazin-1-yl)pyridin-3-yl]methanol Methyl 2-chloronicotinate
 1,2-Dimethyl-3-hydroxypyridine-4-one 2,3-Pyridinediol N-Hydroxymethylnicotinamide 6-Chloronicotinic acid
 2-Chloronicotinic acid 2-Phenoxynicotinic acid 5-Chloro-2-hydroxynicotinic acid 3-Pyridylacetic acid
 3-(3-Pyridyl)acrylic acid Fmoc-(S)-3-Amino-4-(3-pyridyl)butanoic acid Boc-D-4-Pyridylalanine 4-Oxo-4-(2-pyridyl)butyric acid
 3-Methoxy-(1H)-pyridone 4,5-Dihydro-4,4-dimethyl-2-(3-pyridyl)oxazole Methyl 5-({[5-(trifluoromethyl)-2-pyridyl]thio}methyl)-2-furoate 3-(2-Pyridyl)acrylic acid
 2-(4-Pyridyl)thiazole-4-carboxylic acid 1-(2-Pyridylazo)-2-naphthol Bis-(4-chlorophenyl)pyridin-4-yl-methanol 3-(6-Bromo-2-phenylimidazo[1,2-a]pyridin-3-yl)acrylic acid
 3-(2-Biphenyl-4-yl-imidazo[1,2-a]pyridin-3-yl)acrylic acid 3-[2-(4-Bromophenyl)imidazo[1,2-a]pyridin-3-yl]acrylic acid Ethyl 3-cyano-2-mercapto-6-methylisonicotinate 6-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid
 7-Hydroxy-4-(pyridin-2-yl)coumarin 7-Hydroxy-4-(3-pyridyl)coumarin 3-Chloro-2-[4-(ethoxycarbonyl)phenoxy]-5-(trifluoromethyl)pyridine 2-Hydroxy-6-methylnicotinic acid
 Ethyl 2,6-dichloro-5-fluoronicotinoyl acetate 3-Hydroxypicolinic acid 2,6-Dichloroisonicotinic acid Benzyl 4-(bromomethyl)tetrahydro-1(2H)-pyridinecarboxylate
 4-Hydroxy 6-methylnicotinic acid 5-Methylnicotinic acid 2-Chloro-4-pyridinecarboxylic acid 1,1-dimethylethyl ester 5-Chloronicotinic acid
 2-Mercapto-6-methyl-4-(trifluoromethyl)nicotinonitrile 6-Methyl-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridine-3-carbonitrile N-(Cyanomethyl)pyridinium chloride Nicotinonitrile-1-oxide
 2-([5-(Trifluoromethyl)-2-pyridyl]sulfonyl)acetonitrile 5-Bromonicotinamide 3-Bromo-6-methylpyridin-2-amine (2-(Pyrrolidin-1-yl)pyrid-4-yl)methylamine
 (R)-3-Amino-4-(4-pyridyl)-butyric acid dihydrochloride 3,5,6-Trichloro-4-hydrazinopyridine-2-carboxylic acid L-4-Pyridylalanine 2,6-Dichloro-4-methylnicotinamide
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