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 5-(Dihydroxyboryl)thiophene-2-carboxylic acid Thiophene-3-boronic acid 2-Chloropyrimidine-4-carboxylic acid 2-Methylpyrimidine-4-carboxylic acid
 6-Trifluoromethylnicotinamide Furan-2-ylmethyl-pyridin-4-ylmethylamine 4-(4-Diethylaminostyryl)-1-methylpyridinium iodide 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
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