Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 74-69-1, name is 2-Methyl-4-pyrimidinamine. This compound has unique chemical properties. The synthetic route is as follows. 74-69-1
[00119] t-BuOK (1.00 M in THF, 84 mL, 84 mmol) was added to a stirring mixture of 2-bromo-4 chloropyridine (14.0 g, 72.7 mmol), 2-methylpyrimidin-4-amine (6.1 g, 55.9 mmol), Pd(dppf)C12 (0.82 g, 1.12 mmol), and dppf (2.48 g, 4.47 mmol) in toluene (204 mL). The reaction mixture was allowed to stir at 110 C for 16 h under a nitrogen atmosphere, then was allowed to cool to rt and concentrated. The crude compound was purified by column chromatography to provide N-(4-chloropyridin-2-yl)-2- methylpyrimidin-4-amine (10 g, 8 1%). LCMS (FA): m/z = 221.0 (M+H).
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Reference:
Patent; MILLENNIUM PHARMACEUTICALS, INC.; BHARATHAN, Indu T.; BLACKBURN, Chris; CIAVARRI, Jeffrey P.; CHOUITAR, Jouhara; CULLIS, Courtney A.; D’AMORE, Natalie; FLEMING, Paul E.; GIGSTAD, Kenneth M.; GIPSON, Krista E.; GIRARD, Mario; HU, Yongbo; LEE, Janice; LI, Gang; REZAEI, Mansoureh; SINTCHAK, Michael D.; SOUCY, Francois; STROUD, Stephen G.; VOS, Tricia J.; XU, He; YE, Yingchun; WO2015/108881; (2015); A1;,
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