2,4,6-trisubstituted pyrimidine compounds containing 1,2,3-triazole, preparation method and application thereof
A compound, triazole technology, applied in the application field of anti-tumor drug lead compound
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[0059] The preparation of general formula (II) is obtained with reference to the following documents:
[0060] H.I. Skulnick, J.H. Ludens, M.G. Wendling. Journal of Medicinal Chemistry, 1986, 29, 1499-1504.
[0061] The preparation of general formula (IV) is obtained with reference to the following documents:
[0062] (a) Ina Wilkening.; Giuseppedel Signore.; C.P.R. Hackenberger. Chem. Commun. 2011, 47, 349-351. (b) Mingyu Hu.;
Embodiment 1
[0063] Shown in embodiment 1 general formula (II), R 3 =H''s derivative (II-1) preparation
[0064] Add ethyl cyanoacetate (2.262g, 20mmol) and sodium hydroxide (1.200g, 30mmol) into the ethanol solution, under reflux, react for a period of time, then add thiourea (2.284g, 30mmol) and benzaldehyde (3.184 g, 30mmol) was added to the reaction system, the reaction was stirred, followed by TLC detection. After the reaction, filter with suction and recrystallize to obtain the pure product.
Embodiment 2
[0065] Shown in embodiment 2 general formula (III), R 3 =H''s derivative (III-1) preparation
[0066] Add propyne bromide (3.569g, 30mmol) dropwise into a solution of II-1 (2.674g, 10mmol) in 1,4-dioxane, and heat and stir to react. Monitor the reaction process with TLC until the reaction is complete; then directly dropwise add phosphorus oxychloride (4.600g, 30mmol) to the reaction system, after the reaction is complete, pour it into ice water, stir, and solids are precipitated, filtered by suction to obtain Solid, the solid of pure compound III-1 was obtained by column chromatography. Yield 64%, pale yellow solid. 1 HNMR(400MHz, CDCl3,δ,ppm)δ8.18–8.05(m,2H,Ar-H),7.71–7.50(m,3H,Ar-H),4.01(d,J=2.6Hz,2H,- CH2-),2.28(t,J=2.6Hz,1H,≡C-H).13CNMR(101MHz,CDCl3)δ174.02,168.73,163.95,134.07,132.72,129.35,129.02,114.43,101.42,78.17,71.63,20.36.
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