A kind of compound and preparation method thereof
A technology of compounds and base catalysts, applied in the field of active compounds and their preparation, can solve problems such as reducing the toxicity of berberine, and achieve the effects of reducing toxicity and simple operation
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Embodiment 1
[0062] An embodiment of the compound of the present invention, the chemical structural formula of the compound described in this embodiment is as attached figure 1 As shown, the compound described in this example is prepared by the following preparation method:
[0063] (1) Place the compound of formula (5) in a dry and clean three-necked flask, add DMAC to the three-necked flask, the molar ratio of DMAC to the compound of formula (5) is 5:1, and then heat and reflux in the electric jacket , the reaction temperature is 50-400°C, and the reaction is monitored by HPLC. When the basic reaction of the raw materials is complete or the product no longer increases, stop the reaction; when the temperature drops below 120°C, add pure ice water while stirring, and place it in the refrigerator Static crystallization, the temperature is about zero, then suction filtration, washing, and drying to obtain the compound of formula (1); in this step, the yield of the compound of formula (1) obt...
Embodiment 2
[0067] An embodiment of the compound of the present invention, the chemical structural formula of the compound described in this embodiment is as attached figure 1 As shown, the compound described in this example is prepared by the following preparation method:
[0068] (1) Place the compound of formula (5) in a dry and clean three-necked flask, add DMSO to the three-necked flask, the molar ratio of DMSO to the compound of formula (5) is 10:1, and then heat and reflux in the electric jacket , the reaction temperature is 50-400°C, and the reaction is monitored by HPLC. When the basic reaction of the raw materials is complete or the product no longer increases, stop the reaction; when the temperature drops below 120°C, add pure ice water while stirring, and place it in the refrigerator Static crystallization, the temperature is about zero, then suction filtration, washing, and drying to obtain the compound of formula (1); in this step, the yield of the compound of formula (1) ob...
Embodiment 3
[0072] An embodiment of the compound of the present invention, the chemical structural formula of the compound described in this embodiment is as attached figure 1 As shown, the compound described in this example is prepared by the following preparation method:
[0073] (1) Place the compound of formula (5) in a dry and clean three-necked flask, add DMF to the three-necked flask, the molar ratio of DMF to the compound of formula (5) is 15:1, and then heat and reflux in the electric jacket , the reaction temperature is 50-400°C, and the reaction is monitored by HPLC. When the basic reaction of the raw materials is complete or the product no longer increases, stop the reaction; when the temperature drops below 120°C, add pure ice water while stirring, and place it in the refrigerator Static crystallization, the temperature is about zero, then suction filtration, washing, and drying to obtain the compound of formula (1); in this step, the yield of the compound of formula (1) obta...
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