830346-51-5Relevant academic research and scientific papers
AN IMPROVED PROCESS FOR THE PREPARATION OF 4-({(1 R)-2-[5-(2-FLUORO-3METHOXYPHENYL)-3-{[2-FLUORO-6-(TRIFLUORO METHYL) PHENYL]METHYL}-4-METHYL-2,6-DIOXO-3,6DIHYDROPYRIMIDIN-1(2 H)-YL]-1-PHENYLETHYL}AMINO)BUTANOIC ACID OR ITS PHARMACEUTICALLY ACCEPTABLE SALTS
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, (2021/07/02)
The present invention relates to an improved process for the preparation of 4- ({(1R) -2- [5- (2-fluoro- 3- methoxy phenyl) – 3 - {[ 2-fluoro- 6-(trifluoro methyl) phenyl] methyl} -4-methyl- 2,6-dioxo- 3,6-dihydropyrimidin-1(2H)-yl]-1-phenylethyl}amino) butanoic acid of formula (I) or its pharmaceutically acceptable salts. The compound of formula (I) is represented by the following structural formula.
Preparation method of oxragolian sodium
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Paragraph 0028; 0043-0049, (2021/04/21)
The invention provides a preparation method of oxagolide sodium. According to the method, the synthetic route of the oxogoliride sodium is improved, Boc protecting groups are removed by using concentrated hydrochloric acid, and then the oxogoliride sodium
AN IMPROVED PROCESS FOR THE PREPARATION OF ELAGOLIX SODIUM
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, (2021/04/10)
An improved process for the preparation of Elagolix Sodium having the structural formula (I). The present invention relates to highly pure compound of formula (VI) as a solid which is useful in the preparation of Elagolix sodium. The present invention pro
Substituted pyrimidine-2, 4(1H, 3H)-dione derivative and uses thereof
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, (2020/07/12)
The invention belongs to the technical field of medicines, and relates to a substituted pyrimidine-2, 4(1H, 3H)-dione derivative and uses thereof, and a pharmaceutical composition containing the compound. The derivative and the pharmaceutical composition can be used as gonadotropin releasing hormone receptor antagonists. The invention also relates to a method for preparing the compound and the pharmaceutical composition, and uses of the compound and the pharmaceutical composition in prevention or treatment of sex hormone dependent diseases including but not limited to prostate cancer, endometriosis, hysteromyoma, precocious puberty and the like.
PROCESS FOR THE PREPARATION OF ELAGOLIX SODIUM AND INTERMEDIATES THEREOF
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, (2020/10/17)
The present invention relates to compounds of Formula A, isomers, polymorphs and process of preparation thereof, wherein, S is a pharmaceutically acceptable salt, R is selected from hydrogen or C1-C3 alkyl group substituted with Rsu
Intermediate crystal form A of rotigotine and sodium salt thereof as well as preparation method and application thereof (by machine translation)
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Paragraph 0023, (2020/10/04)
The invention discloses an intermediate crystal form A of and a sodium salt thereof, and a preparation method and application thereof, and relates to a medicine intermediate and a preparation method and application thereof. The preparation method provided
IMPROVED PROCESS FOR THE PREPARATION OF ELAGOLIX AND ITS INTERMEDIATES
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Page/Page column 24, (2020/12/11)
The present invention provides an improved process for the preparation of Elagolix sodium of formula (I) and its intermediates. The present invention also provides a compounds of formula (V) and (VI), (X), (Xa) and (Xb). The present invention further prov
PROCESS FOR PREPARING ELAGOLIX
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, (2019/07/19)
The application relates to a process for the preparation of compound of formula (1) or a salt thereof (i.e. elagolix): The application also relates to solid crystalline forms of intermediates used in the process.
Method for catalytically synthesizing elagolix intermediate through organic metal palladium
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Paragraph 0039; 0048; 0057; 0066; 0081-0083, (2019/06/05)
The invention discloses a method for catalytically synthesizing an elagolix intermediate through organic metal palladium. The structure of the elagolix intermediate is as shown in a formula I which isshown in the description; a synthesis route of a compound as shown in the formula I is as shown in the description. The method specifically comprises the steps of synthesis of a compound as shown ina formula VIII, synthesis of a compound as shown in a formula X and synthesis of a final product. Through a synthesis scheme disclosed by the invention, not only synthesis raw materials are cheap andeasy to obtain, the synthesis route is green and environment-friendly, the synthesis steps are less, the yield is high, the production period is short, and the synthesis route is suitable for being used as an industrial production technique route.
Preparation method of elagolix impurities
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Paragraph 0035; 0036, (2019/02/13)
The invention relates to a synthetic method of three elagolix impurities which is important to the synthesis of high-quality elagolix. The invention mainly focuses on the study on a preparation methodof (R)-5-(2-fluoro-3-methoxyphenyl)-1-[2-fluoro-6-(trif
