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公开(公告)号:US5416221A
公开(公告)日:1995-05-16
申请号:US135407
申请日:1993-10-13
申请人: Peter Bod , Kalman Harsanyi , Ferenc Trischler , Eva Fekecs , Attila Csehi , Bela Hegedus , Eva Mersich ne/ e Donat , Gyorgyi Szabonee Komlosi , Erika Horvath nee Sziki
发明人: Peter Bod , Kalman Harsanyi , Ferenc Trischler , Eva Fekecs , Attila Csehi , Bela Hegedus , Eva Mersich ne/ e Donat , Gyorgyi Szabonee Komlosi , Erika Horvath nee Sziki
IPC分类号: A61K31/40 , A61K31/403 , A61K31/415 , A61P1/08 , C07D209/88 , C07D209/96 , C07D403/04 , C07D403/06 , C07D491/10 , C07D491/107
CPC分类号: C07D403/06 , C07D209/88
摘要: The invention relates to carbazolone derivatives of the formula ##STR1## wherein A stands for a group of formula--CH.sub.2 --R (V), wherein R means a hydroxyl or 2-methyl-1H-imidazol-1-yl group;B represents a group of formula ##STR2## wherein R.sub.1 means hydrogen or a methyl or ethyl group; or A and B together form a group of formula ##STR3## wherein R.sub.2 means a methyl or ethyl group; or A and B together form a group of formula ##STR4## The above compounds are useful intermediates in the synthesis of ondansetron of formula ##STR5## chemically 9-methyl-3-[(2-methyl)-1H-imidzol-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) but B may be also hydrogen. Thus, this novel process is suitable for the preparation of ondansetron itself.
摘要翻译: 本发明涉及式(I)的咔唑酮衍生物,其中A代表式-CH 2 -R(V)的基团,其中R表示羟基或2-甲基-1H-咪唑-1-基; B表示式(VI)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(VII)的基团,其中R 2表示甲基或乙基; (A)和(B)一起形成一组式(VIII)。上述化合物是化学式为9-甲基-3 - [(2-甲基)-1H的式(Ⅱ)的昂丹司琼的合成中的有用中间体 - 咪唑-1-基)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,但B也可以是氢。 因此,该新方法适用于昂丹司琼本身的制备。