Patent ID: 7705017

Claim:
A hydroxamic acid compound represented by formula (I): wherein: X is selected from the group consisting of a carbonyl group (C═O), or a sulfonyl group (SO 2 ); Y is selected from the group consisting of C 1 -C 6 alkyl, R 1 (R 2 )N—(CH 2 ) n —, wherein: R 1 and R 2 are each independently selected from the group consisting of hydrogen, straight chain lower alkyl, and branched lower alkyl; R 1 and R 2 , taken together with the nitrogen to which they are attached, form a heterocyclic ring, wherein said heterocyclic ring is optionally substituted with a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted benzyl group; R 3 and R 4 are each independently selected from the group consisting of hydrogen, halogen, straight chain C 1 -C 8 alkyl, (R 1 )(R 2 )N—(CH 2 ) n —, NH 2 —C(═NH)—NH—, OR 5 , CF 3 , NO 2 , R 7 —C(═O)N(R 6 )—, imidazolyl, and pyrrolyl, wherein R 1 and R 2 are as defined above; R 5 is hydrogen, C 1 -C 8 alkyl, or benzyl; R 6 is hydrogen, lower alkyl, or benzyl; R 7 is C 1 -C 8 alkyl, benzylalkyl, heteroalkyl or heteroaralkyl; R 8 is hydrogen, —(CH 2 ) n N(R 1 )(R 2 ), or OR 5 , wherein R 1 , R 2 and R 5 are as defined above; R 9 is hydrogen, C 1 -C 8 alkyl, or benzyl; Z is —C(R 3 )— or nitrogen (N), wherein R3 is as defined above; and n is 0 to 6; or hydrates, polymorphs, or pharmaceutically acceptable salts thereof.