专利号:US-8426612-B2 优先权日:2009-04-22 标 题:Synthesis of 3-{[(2R)-1-methylpyrrolidin-2-yl]methyl}-5[2-(phenylsulfonyl)ethyl]-1H-indole 发明人:SERAFINI SIRO; CASTELLIN ANDREA; DAL SANTO CLAUDIO 权利人:SERAFINI SIRO; CASTELLIN ANDREA; DAL SANTO CLAUDIO; ITALIANA SINT SPA 摘要:The present invention refers to the synthesis of 3-{[(2R)-1-methylpyrrolidin-2-yl]methyl}-5-[2-(phenylsulfonyl)ethyl]-1H-indole, a drug known by the name Eletriptan, or of its salts. In particular, the present invention regards a process for the synthesis of Eletriptan or of its salt, comprising the following steps: a) Salifying the intermediate of Formula (6), using a dicarboxylic acid to obtain a derived salt; b) Optionally, purifying said raw salt obtained according to step a) by solvent crystallization to obtain a purified salt of the intermediate of Formula (6); c) Converting said salt of the intermediate of formula (6) according to step a) or said purified salt according to step b) into an intermediate of formula (10); d) Converting the intermediate of Formula (10) into Eletriptan or its salt.
专利号:WO-2011024039-A1 优先权日:2009-08-25 标题 :Synthesis of novel 5-(2-(phenylsulfonyl)ethyl)-1h-indole derivatives 发明人:POTLURI RAMESH BABU; KODALI HARI PRASAD; VENTURI SRINIVASA RAO; TADIMALLA VENKATA SRIHARI 权利人:POTLURI RAMESH BABU; KODALI HARI PRASAD; VENTURI SRINIVASA RAO; TADIMALLA VENKATA SRIHARI 摘要:An objective of the present invention is to develop commercially viable methods for the synthesis of 5-[2-phenylsulfony)ethyl]-1H-indole of Formule (II), where R 1 and R 2 are same or different and each independently represent a hydrogen, fluorine, or di(lower alkyl)amino, acyl, or alkoxy carbonyl or chlorine atom, or a lower alkyl, lower alkoxy, nitro, cyano, aminolower alkylamine group Formula (II). Another objective of the present invention is to convert the product Formula (II) to Formula (I) in high yields, where R 1 and R 2 are same or different and each independently represent a hydrogen, fluorine, or di(lower alkyl)amino, acyl, or alkoxy carbonyl or chlorine atom, or a lower alkyl, lower alkoxy, nitro, cyano, aminolower alkylamine group Formula (I). One of the first processes attempted was by reacting the indole derivative of Formula (III) with aryl vinyl sulphones of Formula (V) as shown in Scheme-III. Another process attempted was by reacting the aniline derivative of Formula (VI) with aryl sulphones of Formula (VII) as shown in Scheme-III. Scheme IV.
专利号:US-6303764-B1 优先权日:1998-09-24 标题:Synthesis of 4,7-dialkyl chromogenic glycosides of N-acetylneuraminic acids 发明人:SRIVASTAVA OM; SRIVASTAVA GEETA; DU MINGHUI; HINDSGAUL OLE; BUNDLE DAVID R; LIAV AVRAHAM 权利人:ZYMETX INC; HALIFEX FUND L P 摘要:The present invention provides an improved method of preparing a 4,7-di-O-alkyl chromogenic ketoside of N-acetylneuraminic acid (Neu5Ac) for use in detecting influenza virus types A and B. The ketosides are substrates that are selectively cleaved by a neuraminidase on influenza virus, but not be neuraminidases found on other viruses or on bacteria. The synthesis is efficient and provides large quantities of the ketoside for commercial development. The synthesis includes a step of alkylating the 4- and 7-hydroxyl groups of a protected alkyl ester alkyl ketoside derivative of Neu5Ac by a process that comprises contacting the derivative with a composition comprising an alkyl halide to form a 4,7-di-O-alkyl protected alkyl ester alkyl ketoside derivative of Neu5Ac. The synthesis alternatively includes protecting the 8- and 9-hydroxyl groups of an alkyl ester alkyl ketoside derivative of Neu5Ac by forming an 8,9-epoxide protected alkyl ester alkyl ketoside derivative of Neu5Ac.
专利号:US-7652137-B2 优先权日:2003-03-06 标 题:Synthesis of 5 substituted 7-azaindoles and 7-azaindolines 发明人:GRACZYK PIOTR PAWEL; KHAN AFZAL; BHATIA GURPREET SINGH 权利人:EISAI R&D MAN CO LTD 摘要:The present invention provides a novel substituted azaindoline intermediate of formula (I) and a method for its synthesis. The novel substitued azaindoline intermediate (I) is provided for use in the manufacture of 5-substituted 7-azaindolines and 5-substituted 7-azaindoles.
专利号:US-2023220001-A1 优先权日:2020-06-09 标 题:Method for synthesis of thioether-containing peptides 发明人:GRUSS HENDRIK; LUTZ CHRISTIAN; SÜSSMUTH RODERICH; Yao guiyang; KNITTEL CAROLINE; KOSOL SIMONE; MAINZ ANDI 权利人:HEIDELBERG PHARMA RES GMBH 摘要:The present invention relates to a method of formation of a sulphur bridge between tryptophan and cysteine in solid phase peptide synthesis under iodine treatment. The invention also relates to the resulting compounds of the method and their respective use.
专利号:US-9969686-B2 优先权日:2014-08-05 标 题 :Synthesis of diindolylmethanes and indolo[3,2-b]carbazoles, compounds formed thereby, and pharmaceutical compositions containing them 发明人:TANG WEIPING; LI XIAOXUN; SHU DONGXU; WINSTON-MCPHERSON GABRIELLE N 权利人:WISCONSIN ALUMNI RES FOUND 摘要:Described is a method to make diindolylmethanes and indolyl/pyrrolylmethanes, The method includes the steps of contacting an ether comprising an arylpropargyl moiety and an amine-protected, substituted or unsubstituted aniline moiety with a substituted or unsubstituted indol or a substituted or unsubstituted pyrrole, in the presence of a metal-containing catalyst, for a time and at a temperature to cause an annulation/arylation cascade reaction that yields a diindolylmethane or a indolyl/pyrrolylmethane. The resulting compounds are effective to modulate activity of arylhydrocarbon receptors, to inhibit activity of PCSK9, and to stimulate secretion of glucagon-like peptide 1 in mammals.