4-aminopyrimidine derivatives as cxcr4 inhibitors and their application
A technology of inhibiting activity, alkyl, used in age-related macular degeneration, for, a composition comprising the compound, brain inflammation, heterocyclic compounds, diabetic retinopathy, related diseases, to achieve good drug interaction safety , the effect of weak inhibition
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Embodiment 1
[0065] Heterocyclic compound A1, which is synthesized by the following method:
[0066]
[0067] 1) Synthesis of intermediate A1-2:
[0068] Intermediate A1-1 (280mg, 1.9mmol, please refer to WO2016128529 for synthesis literature) was dissolved in dichloromethane (10mL), and thionyl chloride (280mg, 2.3mmol) was added dropwise under ice-cooling, stirring was continued overnight, and sodium bicarbonate was added The solution was extracted three times with dichloromethane (50 mL), and the dichloromethane phase was dried and spin-dried to obtain a pale yellow oil (180 mg, 58%).
[0069] 2) Synthesis of intermediate A1-4:
[0070] Intermediate A1-3 (160mg, 1mmol, see WO2006026703 for synthesis literature), Intermediate A1-2 (170mg, 1.05mmol), potassium iodide (16mg, 0.1mmol) and N, N-diisopropylethylamine (320mg, 2.5mmol) was dissolved in 10mL acetonitrile, stirred overnight at room temperature, added 100mL dichloromethane and 50mL sodium bicarbonate aqueous solution for extr...
Embodiment 2
[0074] According to the synthesis method of Example 1, the corresponding amines were used to replace N-methylpiperazine in the last step to obtain heterocyclic compounds A2, A5, A6, A22-A26, A39 and A60.
Embodiment 3
[0076] Heterocyclic compound A3, which is synthesized by the following method:
[0077]
[0078] 1) Synthesis of Intermediate A3-2:
[0079] Ethyl 4-chloroacetoacetate (13g, 79mmol), S-methylisothiourea sulfate (20g, 72mmol), dissolved in 200mL of water, added sodium carbonate (11.5g, 108mmol), stirred overnight at room temperature, added 6N HCl The pH was adjusted to be acidic, and a solid was precipitated, which was filtered and dried to obtain the product (11.1 g, 73%) as a white solid.
[0080] 2) Synthesis of intermediate A3-3:
[0081] Intermediate A3-2 (2.8g, 14.7mmol) was dissolved in 10mL phosphorus oxychloride, stirred at 100°C for 1h, spin-dried, added 100mL ethyl acetate and 100mL sodium bicarbonate aqueous solution for extraction, ethyl acetate was dried and spin-dried. The residue was purified by column chromatography (ethyl acetate:petroleum ether=100:3) to obtain the product (2.4 g, 80%) as a yellow oily liquid.
[0082] 3) Synthesis of Intermediate A3-4:...
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