Thienopyridone derivative, preparation method and uses thereof
A technology of pyridine and tetrahydrothiophene, applied in the field of medicine, can solve problems such as toxic and side effects, normal cell damage, and drug resistance
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Embodiment 1
[0066] intermediate 1 preparation of
[0067]
[0068] 16.2 g of 4-phenylpiperazine was added to a reaction flask equipped with stirring, a condenser, and a thermometer, dissolved in 30 mL of dichloromethane, cooled to -30°C while stirring, and 41.5 g of anhydrous potassium carbonate was added. Dissolve 11.3 g of chloroacetyl chloride in 25 mL of dichloromethane and slowly add it dropwise to the reaction system. After the dropwise addition is complete, continue the reaction at -10°C for 2 h (the plate layer shows that the reaction is complete). The reaction solution was washed with 3×50 mL of water, and the dichloromethane layer was separated, fully dried with anhydrous sodium sulfate, filtered, and the dichloromethane was evaporated under reduced pressure to obtain 21.0 g of a colorless oily product (HPLC: 98.5%). Rf = 0.56 [single site, developer: v (petroleum ether): v (ethyl acetate) = 2: 1].
[0069] 1 H NMR (CDCl 3 , 400MHz) δ: 3.452~3.457(m, 2H), 3.460~3.465(m, 2...
Embodiment 2
[0071] intermediate 2 preparation of
[0072]
[0073] Add 17.6 g of p-methylphenylpiperazine to a reaction flask equipped with a stirring, condenser, and thermometer, dissolve it with 40 mL of chloroform, cool to -20°C while stirring, and add 30.4 g of triethylamine. Dissolve 20.2 g of bromoacetyl bromide in 30 mL of chloroform and slowly add it dropwise to the reaction system. After the dropwise addition is complete, continue the reaction at 0° C. for 4 h (the plate layer shows that the reaction is complete). The reaction solution was washed with 3×80 mL of water, and the chloroform layer was separated, fully dried with anhydrous sodium sulfate, filtered, and the chloroform was evaporated under reduced pressure to obtain 26.8 g of a colorless oily product (HPLC: 98.9%). Rf = 0.60 [single point, developer: v (petroleum ether): v (ethyl acetate) = 2: 1].
[0074] 1 H NMR (CDCl 3 , 400MHz) δ: 2.517~2.519(s, 3H), 3.453~3.458(m, 2H), 3.462~3.466(m, 2H), 3.631~3.636(m, 4H),...
Embodiment 3
[0076] intermediate 3 preparation of
[0077]
[0078] Referring to the method of Example 1, o-fluorophenylpiperazine was used instead of 4-phenylpiperazine, and reacted with chloroacetyl chloride to obtain a colorless oily product (HPLC: 99.6%). Rf = 0.58 [single site, developer: v (petroleum ether): v (ethyl acetate) = 2: 1].
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Abstract
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