申请人:Yamamoto Ichiro
公开号:US06956046B2
公开(公告)日:2005-10-18
A compound represented by the following Formula (I):
(wherein A represents oxygen atom or —NR
3
— (R
3
represents hydrogen atom or lower alkyl group); R
1
represents nitro group, lower alkoxycarbonyl group, carbamoyl group unsubstituted or mono- or di-substituted by lower alkyl group, unprotected or protected hydroxyl group, unprotected or protected carboxyl group, lower alkyl group substituted by unprotected or protected hydroxyl group, or tetrazolyl group; and R
2
represents hydrogen atom, cyano group or lower alkylsulfonyl group, provided that when A is —NR
3
—, it is excluded that R
1
represents unprotected or protected hydroxyl group or lower alkyl group substituted by unprotected or protected hydroxyl group) or its salt, and method for producing the compound, and a pharmaceutical composition containing the compound as active ingredient.
以下是式子(I)所代表的化合物:(其中A代表氧原子或—NR3—(R3代表氢原子或较低的烷基);R1代表硝基,较低的烷氧羰基,未被取代或被较低烷基单取代或双取代的羰酰胺基,未受保护或受保护的羟基,未受保护或受保护的羧基,被未受保护或受保护的羟基取代的较低烷基,或四唑基;R2代表氢原子,氰基或较低烷基磺酰基,但当A为—NR3—时,不包括R1代表未受保护或受保护的羟基或被未受保护或受保护的羟基取代的较低烷基)或其盐,并且制备该化合物的方法,以及含有该化合物作为活性成分的药物组合物。