| 摘要 |
Benzofuran derivatives represented by formula (I) or pharmacologically acceptable salts thereof: wherein R<1> represents hydrogen, optionally substituted lower alkyl, lower cycloalkyl, etc.; R<2>, R<3>, R<4> and R<5> are the same or different and each represents hydrogen, lower alkyl, optionally substituted aryl, optionally substituted aralkyl, etc.; R<6> represents hydrogen, lower alkyl, etc.; R<7> and R<8> are the same or different and each represents hydrogen, lower alkyl, optionally substituted aryl, etc.; R<9> represents optionally substituted lower alkyl, etc.; and A represents lower alkyl, optionally substituted aryl, etc. |
