475108-18-0Relevant articles and documents
Synthesis process of VEGFR inhibitor tevozanib
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, (2022/03/27)
The invention relates to a synthesis process of a VEGFR (vascular endothelial growth factor receptor) inhibitor tevozanib. According to the invention, commercially available raw materials are subjected to a halogenation reaction, an esterification reaction and an addition reaction to synthesize a target product. Generally speaking, according to the synthetic route and the synthetic process, the synthetic steps are simplified, the reaction yield of each step is high, the treatment after the reaction is simple, pulping purification is mostly adopted for purification, the use of column chromatography is avoided, the operation process is simple and cheap, and the synthetic route and the synthetic process are favorably applied to industrial mass production.
Preparation method of VEGFR inhibitor tevozanib
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Paragraph 0037; 0056-0064, (2022/03/27)
The invention relates to a preparation method of a VEGFR (vascular endothelial growth factor receptor) inhibitor tevozanib. Compared with the prior art, according to the preparation method, the compound shown in the formula 1 and the compound shown in the formula 2 are selected to react, the reaction reagent compound shown in the formula 3 is prepared firstly, then the reaction reagent compound shown in the formula 3 and the hydroxyl of the compound shown in the formula 4 are subjected to the substitution reaction, the reaction site of the reaction is single, the yield is excellent, and reaction purification is convenient; the method provided by the invention has the advantages of simple operation process, low purification cost and high overall yield, and is suitable for industrial large-scale production of bulk pharmaceutical chemicals, and the process steps for synthesizing and preparing the tevozanib are simplified.
Preparation method for Tivozanib
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Paragraph 0022; 0023; 0025, (2017/08/29)
The invention belongs to the technical field of the biological medicine, and particularly relates to a preparation method for Tivozanib. The preparation method comprises the following steps: firstly using N-[2-chlorine-4-hydroxy-phenyl]-N'-(5-methyl-3-isoxazolyl)-urea and 4-chlorine-6,7-dimethoxy quinolin as raw materials, reacting under the alkaline condition to obtain an intermediate product 4-[(4-amino-3-chlorophenol)-oxy]-6,7-dimethoxy quinolin, and reacting with 3-amino-5-methylisoxazole and N,N'-carbonyldiimidazole, to obtain a target product of the Tivozanib. Compared with the prior art, the preparation method has the beneficial effect. The used raw materials in the preparation process are easily obtained, the prepared Tivozanib has high purity (more than 99.65%) and the most of the contained impurities are the raw materials in the preparation process. the ingredients are clear relatively, and there are less harmful by-products.
A new and practical synthesis of tivozanib
Zhu, Chunping,Mao, Yongjun,Wang, Han,Xu, Jingli
, p. 1882 - 1887 (2016/11/06)
New and improved synthetic route of tivozanib is described on a hectogram scale. An reduction cyclization process to prepare the key intermediate 6,7-dimethoxyquinolin-4-ol from the 3-(dimethylamino)-1-(2-nitrophenyl)prop-2-en-1-one compound at H2/Ni cond
N-[2-CHLORO-4-(6,7-DIMETHOXY-4-QUINOLYL)OXY]PHENYL]-N'-(5-METHYL-3-ISOXAZOLYL)UREA SALT IN CRYSTALLINE FORM
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Page/Page column 20, (2010/02/13)
The present invention provides a crystal of a pharmaceutically acceptable salt of N-{2-chloro-4-[(6,7-dimethoxy-4-quinolyl)oxy]phenyl}-N'-(5-m ethyl-3-isoxazolyl) urea. This crystal of salt is usable for the therapy of a disease selected from the group consisting of tumors, diabetic retinopathy, chronic rheumatism, psoriasis, atherosclerosis, Kaposi's sarcoma, and exudation type age-related maculopathy, and has characteristics suitable for applications of oral pharmaceutical preparations.
Quinoline derivatives and quinazoline derivatives having azolyl group
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, (2008/06/13)
An object of the present invention is to provide compounds having potent antitumor activity. The compounds according to the present invention are compounds represented by formula (I) or pharmaceutically acceptable salts or solvates thereof: wherein X and