申请人:Shionogi & Co., Ltd.
公开号:US05268386A1
公开(公告)日:1993-12-07
A novel heterocyclic compound capable of lowering the uric acid levels in plasma and urine having the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, lower alkyl, phenyl or substituted phenyl, or R.sup.1 and R.sup.2 may form a four- to eight-membered carbon ring together with the carbon atom to which they are attached; R.sup.3 is hydrogen or lower alkyl; R.sup.4 is one or two radicals selected from a group consisting of hydrogen, halogen, nitro, lower alkyl, phenyl, substituted phenyl, --OR.sup.5 and --SO.sub.2 NR.sup.6 R.sup.6' ; R.sup.5 is hydrogen, lower alkyl, phenyl-substituted lower alkyl, carboxymethyl or ester thereof, hydroxyethyl or ether thereof, or allyl; R.sup.6 and R.sup.6' are independently hydrogen or lower alkyl; R.sup.7 is hydrogen or a pharmaceutically active ester-forming group; A is a straight or branched hydrocarbon radical having one to five carbon atoms; B is halogen, oxygen, or dithiolane; Y is oxygen, sulfur, nitrogen or substituted nitrogen; Z is oxygen, nitrogen or substituted nitrogen; dotted line represents the presence or absence of a single bond.
一种新型的杂环化合物,能够降低血浆和尿液中的尿酸水平,其化学式为(I):##STR1## 其中R.sup.1和R.sup.2独立地为氢、较低烷基、苯基或取代苯基,或R.sup.1和R.sup.2可以与它们连接的碳原子一起形成一个由四到八个碳原子组成的环;R.sup.3为氢或较低烷基;R.sup.4为从氢、卤素、硝基、较低烷基、苯基、取代苯基、--OR.sup.5和--SO.sub.2 NR.sup.6 R.sup.6' 组成的基团中选择的一个或两个基团;R.sup.5为氢、较低烷基、苯基取代的较低烷基、羧甲基或其酯、羟乙基或其醚、或烯丙基;R.sup.6和R.sup.6'独立地为氢或较低烷基;R.sup.7为氢或具有药用活性酯形成基团;A为具有一到五个碳原子的直链或支链烃基;B为卤素、氧或二硫杂环烷;Y为氧、硫、氮或取代氮;Z为氧、氮或取代氮;虚线表示单键的存在或不存在。