4-alkyl and 4-cycloalkyl derivatives of dihydropyridine NPY antagonists
    8.
    发明授权
    4-alkyl and 4-cycloalkyl derivatives of dihydropyridine NPY antagonists 有权
    二氢吡啶NPY拮抗剂的4-烷基和4-环烷基衍生物

    公开(公告)号:US06444675B2

    公开(公告)日:2002-09-03

    申请号:US09841418

    申请日:2001-04-24

    申请人: Sing-Yuen Sit

    发明人: Sing-Yuen Sit

    IPC分类号: C07D21180

    摘要: A series of non-peptidergic antagonists of NPY have been synthesized and are comprised of 4-alkyl and cycloalkyl derivatives of dihydropyridines of Formula I. As antagonists of NPY-induced behavior, these compounds are expected to act as effective anorexiant agents in promoting weight loss and treating eating disorders.

    摘要翻译: 已经合成了一系列NPY的非肽能拮抗剂,其由式I的二氢吡啶的4-烷基和环烷基衍生物组成。作为NPY诱导行为的拮抗剂,预期这些化合物作为促进减肥的有效的厌氧剂 并治疗进食障碍。

    Process for preparing 4-(4'-carboxyphenyl)pyridine
    9.
    发明申请
    Process for preparing 4-(4'-carboxyphenyl)pyridine 失效
    制备4-(4'-羧基苯基)吡啶的方法

    公开(公告)号:US20010021778A1

    公开(公告)日:2001-09-13

    申请号:US09784535

    申请日:2001-02-15

    申请人: Clariant GmbH

    CPC分类号: C07D211/82 C07D213/55

    摘要: The invention relates to a process for preparing 4-(4null-carboxyphenyl)pyridine, which comprises oxidizing a 4-phenyl-N-acyldihydropyridine of the formula (II) 1 where R1 is a bulky alkyl, alkylaryl, arylalkyl or alkoxy group and R2 is a straight-chain or branched, substituted or unsubstituted alkyl radical having from 1 to 8 carbon atoms, by means of an oxidizing agent selected from the group consisting of permanganates, nitric acid, Cr(VI) compounds, oxygen and air to give the compound of the formula (I) 2 where M is a cation.

    摘要翻译: 本发明涉及一种制备4-(4'-羧基苯基)吡啶的方法,其包括将式(II)的4-苯基-N-酰基二氢吡啶氧化为其中R1是大体积烷基,烷基芳基,芳基烷基或烷氧基,R2 是具有1至8个碳原子的直链或支链,取代或未取代的烷基,通过选自高锰酸盐,硝酸,Cr(VI)化合物,氧气和空气的氧化剂,得到 其中M是阳离子的式(I)化合物。