申请人:Nippon Shinyaku Co., Ltd.
公开号:EP1873147A1
公开(公告)日:2008-01-02
[Problem] The present invention is to provide a novel compound having an excellent PDE4 inhibitory activity and TNF-α production-suppressing activity, and also to provide a preventive and therapeutical agent for atopic dermatitis or the like.
[Means for Solution] The present invention includes a novel phthalazinone derivative of the following general structural formula [1] or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising it as an active ingredient.
In the structural formula [1],
the following partial structure bridging the 6-position and the 7-position represents a single bond or a double bond:
R1 and R2 are the same or different and each represents alkyl or the like, Y represents phenylene or the like, Z represents alkylene or the like, R3 represents a mono- to tri-cyclic saturated or unsaturated cyclic amino group or the like, R31 and R32 represent alkyl or the like.
[问题]本发明旨在提供一种新型化合物,该化合物具有优异的PDE4抑制活性和TNF-α生成抑制活性,同时提供一种特应性皮炎或类似疾病的预防和治疗剂。
[解决方法]本发明包括以下通式结构式[1]的新型酞嗪酮衍生物或其药学上可接受的盐,以及以其为活性成分的药物组合物。
在结构式[1]中
以下连接 6 位和 7 位的部分结构代表单键或双键:
R1和R2相同或不同,各自代表烷基或类似物,Y代表亚苯基或类似物,Z代表亚烷基或类似物,R3代表单环至三环饱和或不饱和环状氨基或类似物,R31和R32代表烷基或类似物。