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。