| abstract |
The present invention provides a therapeutic agent for chronic obstructive pulmonary, comprising a hydroxamic acid compound represented by formula (I), salts there of, solvated compounds thereof, or prodrug thereof as active ingredient: (wherein, R1 represents (I) hydrogen atom, (ii) C1-8 alkyl group, or (iii) a C1-8 alkyl group substituted by -OR2, R2 represents (I) hydrogen atom, (ii) C1-8 alkyl group, (iii) benzyl group or (iv) a C1-8 alkyl group substituted by C1-8 alkoxyl group). |