Ctgf Expression Inhibitor

摘要

A CTGF expression inhibitor comprising a compound of the formula I: a pharmaceutically acceptable salt or solvate thereof as an active ingredient, (wherein Y is hydroxy or a group of the formula: -NH-SO₂-Y' (wherein Y' is optionally substituted aryl or optionally substituted alkyl), and R¹ to R⁹ are each independently hydrogen, halogen, optionally substituted alkyl, optionally substituted alkoxy or the like).