Benzopyrans, their production and pharmaceutical compositions containing them
    3.
    发明公开
    Benzopyrans, their production and pharmaceutical compositions containing them 失效
    Benzopyrane,ihre Herstellung und sie enthaltende pharmazeutische Zusammensetzungen。

    公开(公告)号:EP0042299A1

    公开(公告)日:1981-12-23

    申请号:EP81302700.0

    申请日:1981-06-16

    摘要: Benzopyrans represented by the formula
    wherein A represents a direct bond or -CH 2 O-

    R 1 represents a C 3 -C 5 alkyl group, a hydroxy-(C 3 -C 5 alkyl) group, a lower alkyl-amino-lower alkyl group, a ni- trato-(C 3 -C 5 alkyl) group or a phenyl-(C 1 -C 5 ) alkyl group where the phenyl may be substituted by a lower alkoxy group, R 2 represents hydrogen, halogen, OH, N0 2 , a carbamoyl group, a lower alkyl group, a lower alkoxy group, a lower alkyleneoxy group or an acetyl group, R 3 represents hydrogen or N0 2 , B represents a direct bond, a C 1 -C 7 alkylene group, a -O-lower alkylene group or a -CONH-lower alkylene group, and
    n represents 1 or 2; and their acid addition salts are useful, for example, in reducing heart beat rate, myocardial oxygen consumption and blood pressure.

    摘要翻译: 苯并吡喃由下式表示:其中A表示直接键或-CH 2 O-,R 1表示C 3 -C 5烷基,羟基 - (C 3 -C 5烷基),低级烷基 - 氨基 - 低级烷基 ,硝基 - (C 3 -C 5烷基)基或苯基 - (C 1 -C 5)烷基,其中苯基可以被低级烷氧基取代,R 2表示氢,卤素,OH,NO 2,氨基甲酰基,低级 烷基,低级烷氧基,低级亚烷基氧基或乙酰基,R 3表示氢或NO 2,B表示直接键,C 1 -C 7亚烷基,-O-低级亚烷基或-CONH-低级亚烷基 组,... n表示1或2; 并且它们的酸加成盐可用于例如降低心跳率,心肌耗氧量和血压。