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. 20348-09-8, name is 2H-Pyrido[3,2-b][1,4]oxazin-3(4H)-one, A new synthetic method of this compound is introduced below., 20348-09-8
the step A compound (3.24mmol) was dissolved in 14 ml of N, N- dimethylformamide, then slowly added Bromine(3.56 mmol). At room temperature it wasstirred for 2 hours then water (300 ml) wasadded .the resulting precipitate was collected by filtration then it was washed with water and dried to give 260 mg ofthe title compound.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; CHIA TAI TIANQING PHARMACEUTICALGROUP CO LTD; Beijing Centaurus Biopharma Technology?Co.,?Ltd.; XIAO, DENGMING; LIANG, ZHI; HU, YUANDONG; HU, QUAN; ZHANG, QINGHUI; HAN, YONGXIN; WANG, HUAN; PENG, YONG; KONG, FANSHENG; LUO, HONG; (60 pag.)CN103130792; (2016); B;,
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