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2-Aminopyridine is an organic compound with the formula H 2 NC 5 H 4 N. It is one of three isomeric aminopyridines. It is a colourless solid that is used in the production of the drugs piroxicam, sulfapyridine, tenoxicam, and tripelennamine. It is produced by the reaction of sodium amide with pyridine, the Chichibabin reaction. [3]
2-Bromopyridine reacts with butyllithium to give 2-lithiopyridine, [2] which is a versatile reagent. [3] Pyrithione can be prepared in a two-step synthesis from 2-bromopyridine by oxidation to the N-oxide with a suitable peracid followed by substitution using either sodium dithionite or sodium sulfide with sodium hydroxide to introduce the thiol functional group.
The systematic name of this enzyme class is 3-hydroxy-2-methylpyridine-4,5-dicarboxylate 4-carboxy-lyase (3-hydroxy-2-methylpyridine-5-carboxylate-forming). This enzyme is also called 3-hydroxy-2-methylpyridine-4,5-dicarboxylate 4-carboxy-lyase. This enzyme participates in vitamin B 6 metabolism.
The 5 substrates of this enzyme are 3-hydroxy-2-methylpyridine-5-carboxylate, NADH, NADPH, H +, and O 2, whereas its 3 products are 2-(acetamidomethylene)succinate, NAD +, and NADP +. This enzyme belongs to the family of oxidoreductases , specifically those acting on paired donors, with O 2 as oxidant and incorporation or reduction of oxygen.
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Vadadustat, sold under the brand name Vafseo, is a medication used for the treatment of symptomatic anemia associated with chronic kidney disease. [2] [3] Vadadustat is a hypoxia-inducible factor prolyl hydroxylase inhibitor.
3-Aminopyridine is prepared by heating nicotinamide with sodium hypobromite (Hofmann rearrangement), which is in turn prepared in situ by the reaction of sodium hydroxide and bromine at 70 °C. [2] It can be used in the synthesis of organic ligand 3-pyridylnicotinamide. Troxipide is another synthesis that uses 3-AP.
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