申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US05384425A1
公开(公告)日:1995-01-24
Diurea derivatives are provided which can be represented by the following general formula and salts thereof: ##STR1## wherein, R.sup.1 and R.sup.2 are the same or different, and each represents C.sup.1 -10 alkyl group, a C.sup.3 -18 cycloalkyl group, or a lower alkyl group substituted by cycloalkyl radical(s); R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different, and each represents a hydrogen atom, a lower alkyl group, a cycloalkyl group, hydrocarbyl aralkyl group, a pyridyl group, or an unsubstituted or substituted phenyl group, the substituents of the phenyl group being selected from a group consisting of lower alkyl radical, halogen atom-substituted lower alkyl radical, halogen atom, nitro radical, amino radical, mono- or di-lower alkylamino radical, lower acylamino radical, hydroxyl radical, lower alkoxy radical and lower acyloxy radical; X represents an oxygen atom or a sulfur atom, and n.sup.1 and n.sup.2 represent an integer of 1 to 6; and wherein at least one of R.sup.3 -R.sup.6 is a phenyl substituted by acyloxy.
提供了可以表示为以下一般式和其盐的脲衍生物: ##STR1## 其中,R.sup.1和R.sup.2相同或不同,每个代表C.sup.1-10烷基,C.sup.3-18环烷基或被环烷基基团取代的低烷基基团;R.sup.3,R.sup.4,R.sup.5和R.sup.6相同或不同,每个代表氢原子,低烷基基团,环烷基团,烃基芳基基团,吡啶基或未取代或取代的苯基,苯基的取代基选择自由基,卤素原子取代的低烷基基团,卤素原子,硝基自由基,氨基自由基,单个或双个低烷基氨基自由基,低酰胺基自由基,羟基自由基,低烷氧基和低酰氧基;X代表氧原子或硫原子,n.sup.1和n.sup.2代表1到6的整数;其中,R.sup.3-R.sup.6中至少有一个是被乙酰氧取代的苯基。