Carbazolone derivatives and process for preparing the same
    9.
    发明公开
    Carbazolone derivatives and process for preparing the same 失效
    Carbazolon - Derivate und Verfahren zu ihrer Herstellung。

    公开(公告)号:EP0595111A1

    公开(公告)日:1994-05-04

    申请号:EP93116542.7

    申请日:1993-10-13

    CPC分类号: C07D403/06 C07D209/88

    摘要: The invention relates to carbazolone derivatives of the formula

    wherein

    A stands for a group of formula
    wherein R means a hydroxyl or 2-methyl-1 H-imidazol-1-yl group;
    B represents a group of formula

    wherein R 1 means hydrogen or a methyl or ethyl group; or A and B together form a group of formula

    wherein R 2 means a methyl or ethyl group; or
    A and B together form a group of formula


    The above compounds are useful intermediates in the synthesis of ondansetron of formula

    chemically 9-methyl-3-[(2-methyl-1 H-imidazol-1-yl)methyl]-1,2,3,9-tetrahydro-4H-carbazol-4-one.
    The invention further relates to a novel process for the preparation of compounds of the formula (I), wherein A and B are the same as in formula (I).

    摘要翻译: 本发明涉及式CHEM的咔唑酮衍生物,其中A代表式-CH 2 -R(V)基团,其中R表示羟基或2-甲基-1H-咪唑-1-基; B表示式CHEM的基团,其中R 1表示氢或甲基或乙基; 或A和B一起形成式CHEM的基团,其中R 2表示甲基或乙基; 或A和B一起形成式的化合物上述化合物是化学式9-甲基-3 - [(2-甲基-1H-咪唑-1-基)苯并噻唑烷酮的合成昂丹司琼的有用中间体。 甲基] -1,2,3,9-四氢-4H-咔唑-4-酮。 本发明还涉及制备式(I)化合物的新方法,其中A和B与式(I)中相同。