Novel berberine derivative as well as synthesis method and application thereof
A technology of berberine and its derivatives, applied in the direction of organic chemical methods, chemical instruments and methods, isotope introduction into organic compounds, etc., can solve the problems of difficult synthesis of raw materials, difficult clinical transformation, low yield, etc., to achieve clinical transformation , Raw materials are easy to get, and the effect of reducing costs
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[0043] In order to further illustrate the technical effect of the present invention, the present invention is specifically described below through examples.
[0044] 18 The specific preparation method of the novel berberine derivatives marked by F is as follows:
[0045]
[0046]Compound 1, (1 g, 2.69 mmol) was placed in a round bottom flask and connected to a water pump using a vacuum adapter. Turn on the water pump to evacuate, and when the vacuum is stable at 0.1Mpa, heat the oil bath to 170 degrees. Heat at this temperature for 1h, take out the vacuum bottle, cool to room temperature, and remove the water pump. The crude product was separated by column chromatography to obtain 0.85 g of compound 2 which was selectively demethylated at the 9-position, with a yield of 88.3%. 1H NMR()10.20(S,1H),8.66(S,1H),7.95(S,1H),7.14(S,1H),7.02(d,1H),6.82(d,1H),6.07(s, 2H), 5.35(S,1H), 4.45(dd,2H), 3.83(S,3H), 3.12(dd,2H).
[0047]
[0048] Compound 2 (300mg, 0.83mmol) was dis...
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