CAS: 14593-46-5; Sodium Tert-Pentoxide

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专利信息

专利号:US-3992413-A
优先权日:1975-07-25
标 题 :Intermediates in the synthesis of prostaglandins
发明人：TAUB DAVID; WENDLER NORMAN L
权利人:MERCK & CO INC
摘要:The invention relates to a new and novel synthesis of prostaglandin E 2 , and it particularly relates to a novel process starting with relatively inexpensive starting materials. The invention further relates to a synthesis which is readily adaptable for large scale processing because of the high yields in the individual reaction steps. n The invention further relates to novel compounds formed as intermediates in the synthesis of prostaglandin E 2 . The invention still further relates to synthetic analogs and known metabolites of prostaglandin E 2 and prostaglandin E 1 , useful as standards in certain biological assays for determining prostaglandin-like activity.

专利号:WO-2025119975-A1
优先权日:2023-12-04
标 题:A method for synthesis of harmine
发明人：HETT ROBERT; GRAB HANUSCH; LAGOUTTE ROMAN
权利人:RECONNECT LABS AG
摘要:The invention relates to a method of synthesis of a compound of formula (I), harmine, according to the method comprising a step of transforming the compound of formula (II), into the compound of formula (I). The invention further relates to a compound of formula (II), which is an intermediate in synthesis of harmine according to the present invention.

专利号:US-2024368099-A1
优先权日:2022-01-18
标 题:Methods for the synthesis of di(hydroxymethyl)tetrahydrofuran and its application in polyesters and polyurethanes
发明人：SPIEGELBERG BRIAN; BRANDT ADRIAN; BECK HORST; KUX ALEXANDER; TIN SERGEY; DE VRIES JOHANNES GERARDUS
权利人:HENKEL AG & CO KGAA
摘要:The present invention relates to the synthesis of di(hydroxymethyl)tetrahydrofuran (DHMTHF) and the preparation of trans-enriched mixtures of DHMTHF. The invention further refers to polyester polyols which are obtained by reaction of cis/trans DHMTHF mixtures with a dicarboxylic acid. The invention further relates to polyurethanes and compositions containing a polyester polyol comprising DHMTHF, in particular to such polyurethane-containing (adhesive) compositions.

专利号:US-10040752-B2
优先权日:2015-08-24
标 题 :Synthesis of levomethadone hydrochloride or dextromethadone hydrochloride and methods for use thereof
发明人：MKRTCHYAN GNEL; YAO QINGWEI
权利人:CODY LABORATORIES INC
摘要:Highly efficient methods for synthesis of levomethadone hydrochloride or dextromethadone hydrochloride are provided starting from D-alanine, or L-alanine, respectively, with retention of configuration. Methods for treating a subject are provided comprising administering a composition comprising an effective amount of levomethadone hydrochloride having not more than 10 ppm dextromethadone.

专利号:US-12312325-B2
优先权日:2022-03-01
标 题:Methods and compounds useful in the synthesis of an AAK1 inhibitor
发明人：CHEN TAO; WU WENXUE; YAN JUN; ZENG XIANGLU; ZHAO MATTHEW MANGZHU
权利人:LEXICON PHARMACEUTICALS INC
摘要:Methods for the synthesis of (S)-1-((2′,6-bis(difluoromethyl)-[2,4′-bipyridin]-5-yl)oxy)-2,4-dimethylpentan-2-amine and salts thereof are disclosed, as well as compounds useful therein.

专利号:US-2024327437-A1
优先权日:2023-03-27
标题 :DE NOVO Synthesis of Cyclocreatine and Subsequent Conversion to Cyclocreatine Phosphate Via a Continuous Flow Reactor (CFR) System
发明人：ELGEBALY SALWA; TODD ROBERT
权利人:NOUR HEART INC
摘要:A highly efficient and safe N-cyanation and N-phosphorylation reagent for the de novo synthesis of pharmaceutically acceptable cyclocreatine and salts was achieved using trichloroacetonitrile in lieu of highly toxic cyanogen bromide (CNBr) for generating the required cyclocreatine (CCr) intermediates, followed by highly effective N-phosphorylation through pH control using phosphoryl chloride with high conversion to the corresponding cyclocreatine phosphate (CCrP) targets. A continuous flow reactor system was engineered to improve the efficiency of the process and deliver a product with improved yield, safety, and cost efficiency.