申请人:Takeda Chemical Industries, Ltd.
公开号:US06248740B1
公开(公告)日:2001-06-19
The present invention provides a compound represented by the formula:
wherein Ar1 and Ar2 are independently an aromatic group which may be substituted, and Ar1 and Ar2 may form a condensed cyclic group with an adjacent carbon atom; ring B is a nitrogen-containing heterocycle which may be substituted; X and Y are the same or different and are independently a bond, an oxygen atom, S(O)p (p is an integer of 0 ot 2), NR4 wherein R4 is a hydrogen atom or a lower alkyl group, or a bivalent linear lower hydrocarbon group which may contain 1 to 3 hetero atoms and the bivalent linear lower hydrocarbon group may be substituted; A is a nitrogen atom or CR7 wherein R7 is a hydrogen atom, a halogen atom, a hydrocarbon which may be substituted, an acyl group or a hydroxy group which may be substituted; R1, R2 and R3 are the same or different and are independently a hydrogen atom, a halogen atom, a hydrocarbon group which may be substituted, an acyl group or a hydroxy group which may be substituted; R8 is a hydrogen atom, a hydroxy group which may be substituted by a lower alkyl or a carboxyl group, or a salt thereof, which exhibits excellent anti-histaminic or eosinophil chemotaxis-inhibiting activities and is useful in treatment or prevention of asthma, allergic conjunctivitis, allergic rhinitis, chronic urticaria or atopic dermatitis.
本发明提供了一种由以下公式表示的化合物:其中Ar1和Ar2分别是可能被取代的芳香基团,Ar1和Ar2可以与相邻的碳原子形成紧密环化的环B是可能被取代的含氮杂环,X和Y相同或不同,分别是键,氧原子,S(O)p(p为0到2的整数),NR4其中R4是氢原子或较低的烷基基团,或者可能含有1到3个杂原子的双价线性较低碳氢基团,双价线性较低碳氢基团可能被取代;A是氮原子或CR7其中R7是氢原子,卤素原子,可能被取代的碳氢基团,酰基或可能被取代的羟基;R1,R2和R3相同或不同,分别是氢原子,卤素原子,可能被取代的碳氢基团,酰基或可能被取代的羟基;R8是氢原子,可能被较低烷基或羧基取代的羟基,或其盐,具有出色的抗组胺或嗜酸性粒细胞趋化抑制活性,并且在治疗或预防哮喘,过敏性结膜炎,过敏性鼻炎,慢性荨麻疹或特应性皮炎中有用。