Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 890094-38-9, name is 2-Chloro-N-isopropyl-5-nitropyrimidin-4-amine. A new synthetic method of this compound is introduced below., HPLC of Formula: C7H9ClN4O2
4-amino-3-fluoro-N-(4-methylpiperidin-1-yl)benzamide(5.0g) was added to a solution of Compound 2-3(4.3g) in n-butanol(150ml). The mixture was reacted at 90C for 4.0 hours, cooled to room temperature, filtered, washed and dried to obtain a yellow solid(6.3g) in a yield of 72.8%. MS m/z(ESI): 432[M+H]+.
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Reference:
Patent; Si Chuan University; CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd.; YANG, Shengyong; WEI, Yuquan; EP2578584; (2013); A1;,
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