Stereospecific process for the preparation of furo[3,4-c]pyridine,
enantiomer, compounds thus obtained and therapeutical compositions
thereof
    2.
    发明授权
    Stereospecific process for the preparation of furo[3,4-c]pyridine, enantiomer, compounds thus obtained and therapeutical compositions thereof 失效
    制备呋喃并[3,4-c]吡啶,对映异构体,由此得到的化合物及其治疗组合物的立体特异性方法

    公开(公告)号:US5026855A

    公开(公告)日:1991-06-25

    申请号:US449946

    申请日:1989-11-28

    CPC分类号: C07D491/04

    摘要: The present invention relates to stereospecific processes for the preparation of enantiomers of 3-substituted-furo[3,4-c]pyridine of formula I, wherein R.sub.3, R.sub.4 and R.sub.6 stand for various substituents, comprising the steps of: oxidation of a racemic pyridine derivative of formula II, reduction of the resulting ketone with a reducing agent, sterospecific locking or blocking of the OH group of the enantiomer alcohol, opening of the acetonide ring and cyclization of the resulting compound. ##STR1##The present invention also relates to compounds thus obtained and therapeutical compositions thereof.

    摘要翻译: 本发明涉及用于制备式I的3-取代 - 呋喃并[3,4-c]吡啶的对映异构体的立体特异性方法,其中R3,R4和R6代表各种取代基,包括以下步骤:氧化外消旋 式II的吡啶衍生物,用还原剂还原所得的酮,对映体醇的OH基团的固相特异性锁定或封闭,丙酮化合物环的打开和所得化合物的环化。 本发明还涉及由此获得的化合物及其治疗组合物。

    Asymmetric synthesis of furo(3,4-c) pyridine derivatives
    3.
    发明授权
    Asymmetric synthesis of furo(3,4-c) pyridine derivatives 失效
    呋喃(3,4-c)吡啶衍生物的不对称合成

    公开(公告)号:US5043448A

    公开(公告)日:1991-08-27

    申请号:US557975

    申请日:1990-07-26

    申请人: Charles Eck

    发明人: Charles Eck

    CPC分类号: C07D491/04

    摘要: The invention relates to a method for the preparation of a non-racemic furo [3,4-c] pyridine derivatives of the formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 stand for various substitutents, comprising adding a concentrated strong acid to a solution of a non-racemic compound of the formula II ##STR2## in an amount sufficient to catalyze a deprotection/cyclodehydration. These compounds are known antihypertensives.

    摘要翻译: 本发明涉及一种制备式I的非外消旋呋喃并[3,4-c]吡啶衍生物的方法,其中R 1,R 2和R 3代表各种取代基,包括将浓缩的强酸加入 式II II的非外消旋化合物的溶液,其量足以催化脱保护/环化脱水。 这些化合物是已知的抗高血压药。

    Separation of isomers of furo (3,4-C) pyridine derivatives
    7.
    发明授权
    Separation of isomers of furo (3,4-C) pyridine derivatives 失效
    分离呋喃(3,4-C)吡啶衍生物的异构体

    公开(公告)号:US5047537A

    公开(公告)日:1991-09-10

    申请号:US598653

    申请日:1990-10-18

    CPC分类号: C07D491/04 C07H17/00

    摘要: This invention relates to a method for the separation of stereoisomers of 7-hydroxy-furo[3,4-c]pyridine derivatives of the formula ##STR1## wherein R.sub.3, R.sub.4 and R.sub.6 represent various substitutents, which comprises reacting a fully O-acetylated monosaccharide halogenide with a racemate of the selected 7-hydroxy-furo[3,4-c]pyridine derivative, to form the (+) and (-) (O-acetylated monosaccharide) (furo[3,4-c] pyridine 7-yl derivative) ethers, then separating the (+) and the (-) ethers by selective crystallization, in an hydroalcoholic medium, either of the acetylated forms or of the corresponding desacetylated forms and, finally, working up each of the separated derivatives by the usual routes. The compounds are known pharmaceuticals.

    摘要翻译: PCT No.PCT / FR90 / 00228 Sec。 371 1990年10月18日第 102(e)1990年10月18日的PCT 1990年4月2日提交的PCT。本发明涉及分离下式的7-羟基 - 呋喃并[3,4-c]吡啶衍生物的立体异构体的方法: 其中R3,R4和R6代表各种取代基,其包括使完全O-乙酰化的单糖卤化物与所选择的7-羟基 - 呋喃并[3,4-c]吡啶衍生物的外消旋体反应形成(+)和( - )(O-乙酰化单糖)(呋喃并[3,4-c]吡啶-7-基衍生物)醚,然后通过选择性结晶在水醇介质中分离(+)和( - )醚,任一种乙酰化形式 或相应的去乙酰化形式,最后通过通常的路线处理每个分离的衍生物。 这些化合物是已知的药物。

    Aerosol compositions and methods
    8.
    发明申请
    Aerosol compositions and methods 审中-公开
    气溶胶组合物和方法

    公开(公告)号:US20070009445A1

    公开(公告)日:2007-01-11

    申请号:US11477158

    申请日:2006-06-28

    申请人: Charles Eck

    发明人: Charles Eck

    IPC分类号: A61K9/14 A61K31/202 A61L9/04

    摘要: The present invention provides drug formulations and methods that comprise omega-3 and/or omega-6 fatty acids, and their ester derivatives (e.g., methyl, ethyl, isopropyl, etc.), which are soluble in non-CFC propellants. The addition of omega-3 or omega-6 fatty acids to the aerosol formulations also provides therapeutic benefits.

    摘要翻译: 本发明提供了可溶于非CFC推进剂的ω-3和/或ω-6脂肪酸及其酯衍生物(例如甲基,乙基,异丙基等)的药物制剂和方法。 将ω-3或ω-6脂肪酸添加到气雾剂中也可提供治疗益处。