Intermediates for the synthesis of carboxylic acids
    21.
    发明授权
    Intermediates for the synthesis of carboxylic acids 失效
    用于合成羧酸的中间体

    公开(公告)号:US4824970A

    公开(公告)日:1989-04-25

    申请号:US891348

    申请日:1986-07-31

    CPC分类号: C07D317/34 C07C51/00

    摘要: Compounds are described of formula ##STR1## in which: Ar represents a aryl, possibly substituted;R represents a C.sub.1 -C.sub.4 alkyl;R' represents a hydroxyl, an alkoxy, an amino group possibly mono or di-alkyl substituted, or an O-M+ group where M+ represents the cation of an alkaline metal;X represents a hydrogen, chlorine, bromine or iodine atom, a hydroxyl, or an acyloxy, alkylsulphonyloxy or arylsulphonyloxy group.The compounds of formula I can be easily transformed into alphaarylalkanoic acids of formula ##STR2## in which Ar and R have the aforesaid meanings.

    摘要翻译: 化合物描述为式(I),其中:Ar表示可能被取代的芳基; R代表C1-C4烷基; R'表示羟基,烷氧基,可能单或二烷基取代的氨基,或者M +表示碱金属阳离子的O-M +基团; X表示氢,氯,溴或碘原子,羟基或酰氧基,烷基磺酰氧基或芳基磺酰氧基。 式I化合物可以容易地转化成其中Ar和R具有上述含义的式(III)的α-芳基链烷酸。

    Process for the preparation of clopidogrel
    30.
    发明授权
    Process for the preparation of clopidogrel 失效
    制备氯吡格雷的方法

    公开(公告)号:US07329751B2

    公开(公告)日:2008-02-12

    申请号:US10513156

    申请日:2003-04-22

    IPC分类号: C07D471/02

    CPC分类号: C07D495/04

    摘要: A process for the preparation of clopidogrel (1) by reaction of the N,N′-bis-4,5,6,7-tetrahydro-[3,2-c]-thienopyridyl methane (12) with (R)-2-chlorophenylacetic acid derivatives of formula (13) in which X and R have the meanings as indicated in the disclosure.

    摘要翻译: 通过N,N'-双-2,5,6,7-四氢 - [3,2-c] - 噻吩并吡啶基甲烷(12)与(R)-2的反应制备氯吡格雷(1)的方法 (13)的氯苯乙酸衍生物,其中X和R具有本发明所述的含义。