申请人:AMERICAN HOME PRODUCTS CORPORATION
公开号:EP0511865A1
公开(公告)日:1992-11-04
There are disclosed compounds of the formula
wherein
R¹ is hydrogen or lower alkyl;
R² is C₃₋₇ alkyl or C₃₋₇ cycloalkyl;
R³ is hydrogen, lower alkyl, carboxyloweralkyl, lower alkoxycarbonyl, lower alkoxycarbonyl loweralkyl, aryl , aralkyl, -COOH or CONH₂;
R⁴ is hydrogen, C₁₋₈ alkyl,
B is a bond, NH or O;
Y is O or S;
A is a bond or -C=C- ;
n is 0 - 5 ;
R⁵ is hydrogen when B is NH, or
R⁵ is lower alkyl, C₃₋₈ cycloalkyl; aryl, substituted aryl, aralkyl, substituted aralkyl, aralkenyl, aralkenylalkyl or
R⁶ is hydrogen or halo;
the dotted line represents an optional double bond; and
the pharmacologically acceptable salts thereof, which by virtue of their ability to selectively inhibit PDE IV, are bronchodilatory and anti-inflammatory and so are useful in the treatment of acute and chronic bronchial asthma and associated pathologies.
已公开的化合物式如下
其中
R¹ 是氢或低级烷基;
R² 是 C₃₋₇ 烷基或 C₃₋₇ 环烷基;
R³ 是氢、低级烷基、羧基低级烷基、低级烷氧基羰基、低级烷氧基羰基低级烷基、芳基、芳烷基、-COOH 或 CONH₂;
R⁴ 是氢、C₁₋₈ 烷基、
B 是键、NH 或 O;
Y 是 O 或 S;
A 是键或 -C=C- ;
n 为 0 - 5;
当 B 为 NH 时,R⁵ 为氢,或
R⁵ 是低级烷基、C₃₋₈ 环烷基、芳基、取代的芳基、烷基、取代的烷基、烯基、烯基烷基,或
R⁶ 是氢或卤素;
虚线代表任选双键;以及
其药理学上可接受的盐类,由于能够选择性地抑制 PDE IV,因此具有支气管扩张和抗炎作用,可用于治疗急性和慢性支气管哮喘及相关病症。