Method For Preparing Substituted Phenylacetic Acid Derivative

    公开(公告)号:US20210078941A1

    公开(公告)日:2021-03-18

    申请号:US16644205

    申请日:2018-08-07

    Abstract: The invention belongs to the pharmaceutical manufacturing field, which relates to a novel process for the preparation of substituted phenylacetic acids derivatives, especially relates to the preparation of 2-(4-(2-oxocyclopentyl)phenyl)propanoic acid. The process for the preparation of the precursor form of loxoprofen which use 1,4-di-halobenzyl compounds or disubstituted benzyl compounds as starting material, is through the substitution reaction of cyclopentanone groups or its precursor compounds. Wherein X is halogen, L1 is a suitable leaving group selected from halogen, OH, OMs, OTs, OTf and the like; L2 is a suitable leaving group selected from halogen, CN, OH, —CH2OH, —CHO, CH3NO2, ester group, —NR4R5, OTf, OTs, OMs, —C═CR6, —C≡CR7 and the like, wherein R4, R5, R6, R7 are short chain alkyl groups; Z is cyclopentanone group and its precursor form selected from and the like; R3 is short chain alkyl groups. L3 is a suitable leaving group selected from halogen, OH, OMs, OTs, OTf and the like, or organometallic groups. The invention also include the detailed procedure to convert the precursor compounds of cyclopentanone group to cyclopentanone, followed by the transformation of the precursor compounds of loxoprofen to loxoprofen.

    METHOD OF TREATING NON-ALCOHOLIC FATTY LIVER DISEASE AND STEATOHEPATITIS
    4.
    发明申请
    METHOD OF TREATING NON-ALCOHOLIC FATTY LIVER DISEASE AND STEATOHEPATITIS 审中-公开
    治疗非酒精性脂肪性肝病和慢性乙型肝炎的方法

    公开(公告)号:US20150005385A1

    公开(公告)日:2015-01-01

    申请号:US14486805

    申请日:2014-09-15

    Inventor: Kazuko MATSUDA

    CPC classification number: A61K31/192 C07C59/225

    Abstract: A compound of Formula (I): or a metabolite thereof, or an ester of the compound of Formula (I) or the metabolite thereof, or a pharmaceutically acceptable salt of each thereof, wherein m, n, X1 and X2 are as defined herein, is useful for treating non-alcoholic fatty liver disease (NAFLD) or non-alcoholic steatohepatitis (NASH).

    Abstract translation: 式(I)的化合物或其代谢物,或式(I)化合物或其代谢物的酯或其各自的药学上可接受的盐,其中m,n,X1和X2如本文所定义 可用于治疗非酒精性脂肪性肝病(NAFLD)或非酒精性脂肪性肝炎(NASH)。

    Process for the preparation of a composition comprising meso-tartaric acid
    5.
    发明授权
    Process for the preparation of a composition comprising meso-tartaric acid 有权
    制备包含内消旋酒石酸的组合物的方法

    公开(公告)号:US08759574B2

    公开(公告)日:2014-06-24

    申请号:US13322319

    申请日:2010-05-27

    Abstract: The present invention relates to a process for the preparation of a composition comprising tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid, comprising the steps of (i) preparing an aqueous mixture comprising between 35 and 65% by weight of a di-alkali metal salt of L-tartaric acid, a di-alkali metal salt of D-tartaric acid, a mixture of di-alkali metal salts of L-tartaric acid, D-tartaric acid, and optionally meso-tartaric acid, and between 2 and 15% by weight of an alkali metal or alkaline metal hydroxide, and (ii) stirring and heating the aqueous mixture to a temperature of between 100° C. and its boiling point until between 55 and 90% by weight of tartaric acid has been converted to meso-tartaric acid.

    Abstract translation: 本发明涉及一种制备包含酒石酸的组合物的方法,其中所述酒石酸的重量百分比为55-90%是内消旋酒石酸,包括以下步骤:(i)制备含有35至65 重量百分比的L-酒石酸的二碱金属盐,D-酒石酸的二碱金属盐,L-酒石酸的二碱金属盐,D-酒石酸和任选的内消旋 - 酒石酸和2至15重量%的碱金属或碱金属氢氧化物,和(ii)将含水混合物搅拌并加热至100℃至其沸点至55至90%之间的温度, 的酒石酸已经转化为内消旋酒石酸。

    2-formyl 3-oxygenated 5-oxycyclopen-taneheptanoic acids,esters corresponding and derivatives
    7.
    发明授权
    2-formyl 3-oxygenated 5-oxycyclopen-taneheptanoic acids,esters corresponding and derivatives 失效
    2-甲基3-氧化的5-氧代环戊烷 - 十一碳六烯酸,酯与相应的衍生物

    公开(公告)号:US3810936A

    公开(公告)日:1974-05-14

    申请号:US18785371

    申请日:1971-10-08

    Applicant: SEARLE & CO

    Inventor: MIYANO M

    CPC classification number: C07C405/00 C07C59/225 C07C59/90 C07C59/92 C07F9/5407

    Abstract: THE CONDENSATION OF DIMETHYL 3-OXOUNDECANE-1,11-DIOATE WITH STYRYLGLYOXAL AFFORDS 14-PHENYL-9,12-DIOXO-11HYDROXYTETRADEC-13-ENOIC ACID, WHICH IS CYCLIZED TO AFFORD 3-HYDROXY-5-OXO-2-STYRYLCYLOPENT - 1 - ENEHEPTANOIC ACID. HYDROXYLATION OF THE STYRYL DOUBLE BOND AFFORDS THE CORRESPONDING 2-STYRYL-3-HYDROXY COMPOUNDS RE RESOLVED AND IS CLEAVED TO AFFORD THE INSTANT 2-FORMYL COMPOUNDS. THE RACEMIC 2-STYTYL-3-HYDROXY COMPOUNDS ARE RESOLVED AND SUBSEQUENTLY HYDROXYLATED AND CLEAVED TO FORM THE OPTICALLY ACTIVE 2-FORMYL DERIVATIVES. THE INSTANT COMPOUNDS ARE USEFUL AS ANTI-MICROBIAL AGENTS AND ALSO AS INTERMEDIATES TO PROSTANOIC ACID DERIVATIVES AND THEIR OPTICALLY ACTIVE ISOMERS WHICH EXHIBIT ANTI-MICROBIAL, PEPSIN-INHIBITORY, HYPOTENSIVE AND SMOOTH MUSCLE-CONTRACTING PROPERTIES.

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