申请人:American Home Products Corporation
公开号:US05250700A1
公开(公告)日:1993-10-05
There are disclosed compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or lower alkyl; R.sup.2 is C.sub.3-7 alkyl or C.sub.3-7 cycloalkyl; R.sup.3 is hydrogen, lower alkyl, carboxyloweralkyl, lower alkoxycarbonyl, lower alkoxycarbonyl loweralkyl, aryl or aralkyl; R.sup.4 is hydrogen, C.sub.1-8 alkyl, ##STR2## B is a bond, NH or O; Y is O or S; A is a bond or --C.dbd.C--; n is 0-5 R.sup.5 may be hydrogen when B is NH, or R.sup.5 is lower alkyl, C.sub.3-8 cycloalkyl, aryl, substituted aryl, aralkyl, substituted aralkyl, aralkenyl, aralkenylalkyl, ##STR3## --(CH.sub.2).sub.n NR.sup.1 R.sup.1 or --(CH.sub.2).sub.n het, where het is a 5- or 6-membered, saturated or unsaturated, nitrogen- or sulfur- or oxygen-containing monoheterocycle, optionally substituted with lower alkyl or oxo; R.sup.6 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.
公开了化合物的公式##STR1##其中R.sup.1是氢或较低的烷基; R.sup.2是C.sub.3-7烷基或C.sub.3-7环烷基; R.sup.3是氢,较低的烷基,羧基较低的烷基,较低的烷氧羰基,较低的烷氧羰基较低的烷基,芳基或芳基烷基; R.sup.4是氢,C.sub.1-8烷基,##STR2##B是键,NH或O; Y是O或S; A是键或--C.dbd.C--; n是0-5 R.sup.5当B是NH时可以是氢,或者R.sup.5是较低的烷基,C.sub.3-8环烷基,芳基,取代芳基,芳基烷基,取代芳基烷基,芳基烯基,芳基烯基烷基,##STR3## --(CH.sub.2).sub.n NR.sup.1 R.sup.1或--(CH.sub.2).sub.n het,其中het是5-或6-成员,饱和或不饱和,含氮或含硫或含氧的单杂环,可选地取代较低的烷基或氧代; R.sup.6是氢或卤素;虚线表示可选的双键;以及其药理学上可接受的盐,由于其选择性抑制PDE IV的能力,具有支气管扩张和抗炎作用,因此在急性和慢性支气管哮喘及相关病理治疗中有用。