2-Hydroxy-5-methyl-3-nitropyridine (HMPN) is an organosynthetic compound that can be used as a feedstock for the synthesis of other compounds or as a biological inhibitor, such as in the preparation of 2-chloro-5-methyl-3-nitropyridine and transglutaminase 2 (tg2) inhibitors. It reacts with molybdenum and chloride. It is able to react with molybdenum and chloride, and it is able to increase the reaction yield and time. It is also used to explain its reactivity with xylene.
2-Hydroxy-5-methyl-3-nitropyridine may be used in the preparation of 2-chloro-5-methyl-3-nitropyridine via chlorination, using thionyl chloride. It may also be used is preparing proteasome inhibitors containing 5-methylpyridin-2(1H)-one moiety.
