873-42-7, 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. 873-42-7, name is 2-Amino-3,5-dichloropyrazine, A new synthetic method of this compound is introduced below.
Similar procedure to step 3 of the example 18 was followed to arrive at compound 255 with LC-MS [M+H] -m/z 388.
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Reference:
Patent; FUJIAN HAIXI PHARMACEUTICALS CO., LTD; FENG, Yan; WANG, Ruyong; LI, Junqing; ZHENG, Jianjia; LIAN, Xin; GONG, Xuan; FU, Yueli; KANG, Xinshan; (144 pag.)WO2019/174601; (2019); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem