4-amino-3-hydroxy-phthalide, and a process for its preparation
    46.
    发明授权
    4-amino-3-hydroxy-phthalide, and a process for its preparation 失效
    4-氨基-3-羟基磷酸酯及其制备方法

    公开(公告)号:US5210231A

    公开(公告)日:1993-05-11

    申请号:US757865

    申请日:1991-09-11

    申请人: Jurgen Stoltefuss

    发明人: Jurgen Stoltefuss

    IPC分类号: C07D215/48 C07D307/89

    CPC分类号: C07D307/89

    摘要: The present invention relates to 4-amino-3-hydroxy-phthalide, an important intermediate for the synthesis of 3-substituted-5-quinoline-carboxylic acids and to a process for its preparation.

    摘要翻译: 本发明涉及4-氨基-3-羟基 - 苯酞,其是合成3-取代-5-喹啉羧酸的重要中间体及其制备方法。

    Positive inotropic 3-nitro-5-substituted ester and
thioester-1,4-dihydropyridines
    50.
    发明授权
    Positive inotropic 3-nitro-5-substituted ester and thioester-1,4-dihydropyridines 失效
    正性收缩性3-硝基-5-取代酯和硫酯-1,4-二氢吡啶

    公开(公告)号:US4645775A

    公开(公告)日:1987-02-24

    申请号:US734502

    申请日:1985-05-15

    摘要: Novel 3-nitro-dihydropyridine derivatives of the formula ##STR1## in which R.sub.1 and R.sub.2 each independently is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.12 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, halogen, nitro, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -halogenoalkylmercapto, ##STR2## Z is oxygen or sulphur, R.sub.4 and R.sub.5 each independently is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogen, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -halogenoalkoxy or nitro, orR.sub.1 and R.sub.2, together with 2 C atoms of the phenyl ring form the ring ##STR3## X is oxygen or sulphur, A is a hydrocarbon radical with up to 12 C atoms which optionally contains one or two identical or different chain members from the group comprising O, S and CO and/or which is optionally substituted by hydroxyl or aliphatic acyloxy with up to 4 C atoms,R.sub.3 is --O--COR.sub.6, --S--CO--R.sub.6, SH, OH , NH.sub.2, ##STR4## NH--COR.sub.6, COOR.sub.6, NR.sub.7 R.sub.8 or CONR.sub.7 R.sub.8, R.sub.6 is hydrogen or an aliphatic radical with up to 6 C atoms or a phenyl radical, andR.sub.7 and R.sub.8 each independently is hydrogen or an aliphatic radical with up to 6 C atoms or a phenyl radical,or a physiologically acceptable salts thereof, which are active in circulation and exhibit positive inotropic activity.

    摘要翻译: 其中R 1和R 2各自独立地为氢,C 1 -C 4 - 烷基,C 1 -C 12 - 烷氧基,C 1 -C 4 - 卤代烷氧基,卤素,硝基,C 1 -C 4 - 卤代烷基的新颖的3-硝基 - 二氢吡啶衍生物 ,C 1 -C 4卤代烷基巯基,Z为氧或硫,R 4和R 5各自独立地为氢,C 1 -C 4 - 烷基,C 1 -C 6 - 烷氧基,卤素,C 1 -C 4 - 卤代烷基,C 1 -C 4卤代烷氧基或 硝基或R1和R2与苯环的2 C原子一起形成环,X是氧或硫,A是具有至多12个C原子的烃基,其任选地含有一个或两个相同或不同的链成员 由包含O,S和CO的基团和/或其任选被具有至多4个C原子的羟基或脂族酰氧基取代,R 3是-O-COR 6,-S-CO-R 6,SH,OH,NH 2, > NH-COR 6,COOR 6,NR 7 R 8或CONR 7 R 8,R 6是氢或具有至多6个C原子或苯基的脂族基团,并且R 7和R 8各自独立地为氢或至多6个碳原子的脂族基团 oms或苯基或其生理上可接受的盐,其在循环中具有活性并表现出正性肌力活性。