| 摘要 |
The invention is directed to a pharmaceutical composition comprising a pyrrole derivative of the following formula Ä1Ü or its pharmaceutically acceptable salt as an active ingredient. <CHEM> (wherein R<1> represents hydrogen or alkoxycarbonylamino; R<2> represents alkyl, aryl which may be substituted, a aromatic heterocyclyl which may be substituted, unsubstituted amino, monoalkyl-substituted amino, dialkyl-substituted amino, or cyclic amino which may be substituted; R<3> represents cyano or carbamoyl; R<4> represents hydrogen or alkyl; E represents alkylene; q represents 0 or 1; A represents methyl, aryl which may be substituted, or a aromatic heterocyclyl which may be substituted). This pharmaceutical composition is useful as a potassium channel activator. |
