Related Products of 926663-00-5, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.926663-00-5, name is Ethyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate, molecular formula is C9H9N3O3, molecular weight is 207.19, as common compound, the synthetic route is as follows.
The 5-hydroxy pyrazole [1,5-a] pyrimidine-3-carboxylic acid ethyl ester (20.8g), tetrahydrofuran (223 ml) and ethanol (111 ml) is added in the mixture 2M of aqueous sodium hydroxide solution (201 ml). In the reaction mixture is 50 C stirring overnight, and the evaporation of the organic solvent under reduced pressure. Adding the aid hemostasis 2M hydrochloric acid (201 ml), will precipitate and collect the solid by filtration, but also to water/ethanol cleaning and generates a title compound (17.7g).
Statistics shows that 926663-00-5 is playing an increasingly important role. we look forward to future research findings about Ethyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate.
Reference:
Patent; TAKED A PHARMACEUTICAL COMPANY LIMITED; KAWASAKI, MASANORI; MIKAMI, SATOSHI; NAKAMURA, SHINJI; NEGORO, NOBUYUKI; IKEDA, SHUHEI; ASHIZAWA, TOMOKO; MARUI, SHOGO; TANIGUCHI, TAKAHIKO; (135 pag.)TW2016/520; (2016); A;,
Pyrimidine | C4H4N2 – PubChem,
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