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Benzimidazole compounds containing ureido group and application
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A technology of benzimidazoles and compounds, applied in the field of benzimidazoles and their preparation
Active Publication Date: 2021-11-19
SHENYANG PHARMA UNIVERSITY
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Therefore, TOPK has become a new target for tumor treatment, and there is no drug specifically targeting this target on the market. Therefore, inhibitors that can specifically bind to TOPK have become a research hotspot for new anti-tumor drugs.
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[0035] The schemes outline the preparative steps used to prepare the compounds of the invention.
[0036]
[0037] Among them, R, R 3 , R 5 as mentioned earlier.
[0038] The present invention is described in detail with the following examples. However, it should be understood that the present invention is not limited to the specific recited examples below.
Embodiment 1
[0039] Example 1: 1-{3-{[2-{[(1H-benzimidazol-2-yl)thio]methyl}-3-methyl-pyridin-4-yl}oxy}propyl} -Preparation of 3-phenylurea (compound X01)
[0040] Step A: Preparation of 2-{[4-(3-methoxypropoxy)-3-methylpyridin-2-yl]methylthio}-1H-benzimidazole
[0041] 2-Chloromethyl-4-(3-methoxypropoxy)-3-picolinehydrochloride (0.50g, 1.88mmol) was placed in a 125ml eggplant-shaped bottle, and 11ml of ethanol was added to dissolve it, Then 1H-benzimidazole-2-thiol (0.28g, 1.88mmol) and 4ml NaOH (80g / L) were added, refluxed at 68°C for 4h, and the reaction was complete as monitored by TLC. The reaction liquid was poured into a 100ml beaker, cooled naturally to room temperature, a white solid was precipitated, and recrystallized from ethyl acetate and petroleumether (2:1) to obtain 0.58 g of white needle-like crystals, with a yield of 89.3%. m.p.: 115-118°C (literature value: 116-118°C).
[0042] Step B: Preparation of 3-{{2-{[(1H-benzimidazol-2-yl)thio]methyl}-3-methylpyridin-4-yl}ox...
Embodiment 2
[0048] Example 2: 1-{3-{[2-{[(1H-benzimidazol-2-yl)thio]methyl}-3-methyl-pyridin-4-yl}oxy}propyl} - Preparation of 3-(4-chlorophenyl)urea (compound X02)
[0049] Referring to the preparation method of Example 01, 0.32 g of white solid was obtained with a yield of 76.2%, m.p.: 165.8-167.3°C; ESI-MS: m / z 600.7, 602.0, [M+H] + ; 1 H NMR (400MHz, DMSO-d 6)δ8.23(d,J=5.6Hz,1H),7.59(dt,J=7.2,3.5Hz,1H),7.45(dd,J=6.1,3.1Hz,1H),7.39–7.32(m,2H ),7.23–7.12(m,3H),6.97(d,J=5.7Hz,1H),5.23(s,2H),4.70(s,2H),4.59(t,J=5.1Hz,1H),4.12 (t, J=6.2Hz, 2H), 3.77(d, J=5.0Hz, 2H), 3.62(t, J=4.9Hz, 2H), 3.57(q, J=5.9Hz, 2H), 3.11(d , J=4.9Hz, 2H), 2.98(t, J=5.0Hz, 2H), 2.20(s, 3H), 1.89(p, J=6.2Hz, 2H).
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Abstract
The invention belongs to the technical field of medicine, and relates to a benzimidazole compound containing a ureido group, a preparation method thereof and an application in preparation of anti-tumor disease medicines. The general structural formula of the described benzimidazole compound containing ureido group, its prodrug and pharmaceutically active metabolite and pharmaceutically acceptable salt is as follows: R can be selected from hydrogen, phenyl, 4-chlorobenzene Base, 4-methylphenyl, 3-(trifluoromethyl)phenyl. R 3 , R 5 Can be selected from hydrogen, methyl. The synthesis method of the compound of the present invention is simple and convenient, and is suitable for industrial production. Biological activity tests show that the compound has antitumor activity, and is a new type of antitumor drug.
Description
technical field [0001] The invention belongs to the technical field of medicine, and relates to a benzimidazole compound containing a ureido group and a preparation method thereof, and also relates to its function as BRaf kinase, vascular endothelial growth factorreceptor-2 (Vascular endothelial growth factorreceptor-2, VEGFR-2), Application of platelet-derived growth factor receptors-β (Platelet-derived growth factor receptors-β, PDGFR-β) and T-LAK cell-originated proteinkinase (TOPK) inhibitors. Background technique [0002] In recent years, with the continuous elucidation of tumor pathogenesis and the continuous discovery of anti-tumor targets, multi-target inhibition of tumor signal transduction has become an important direction for the development of tumor drugs. Compared with single-target drugs and multiple single-target drugs in combination, multi-target drugs have more advantages: drug interactions can be avoided, adverse reactions can be reduced, and the therape...
Claims
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