Substituted benzoylurea compounds or their salts, processes for their production and antitumour compositions containing them
申请人:ISHIHARA SANGYO KAISHA, LTD.
公开号:EP0413977A2
公开(公告)日:1991-02-27
A substituted benzoylurea compound of the formula (I):
wherein R¹ is a hydrogen atom, a halogen atom or a nitro group, each of R² and R³ is a hydrogen atom, an alkyl group, -COR⁶ (wherein R⁶ is an alkyl group or an alkoxy group) or -SO₂R⁶ (wherein R⁶ is as defined above), or R² and R³ may form together with the adjacent nitrogen atom a heterocyclic ring, R⁴ is a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkylthio group or a nitro group, and R⁵ is a halogen atom, a nitro group or a substituted or unsubstituted alkyl group, or its salt.
化合物的化学式(I)为:其中R¹是氢原子、卤素原子或硝基基团,R²和R³分别是氢原子、烷基、-COR⁶(其中R⁶是烷基或烷氧基)或-SO₂R⁶(其中R⁶如上所定义),或R²和R³可以与相邻的氮原子形成杂环环,R⁴是卤素原子、取代或未取代的烷基、取代或未取代的烷氧基、取代或未取代的烷硫基或硝基,R⁵是卤素原子、硝基或取代或未取代的烷基,或其盐。