Patent ID: 7163941

Claim:
Compounds of formula I: wherein R 1 is —C(O)—NH-alkyl or —C(O)—N(alkyl) 2 , which alkyl groups are unsubstituted or substituted with at least one substituent selected from the group consisting of: —OH; —NH(alkyl); —N(alkyl) 2 ; —NH—C(O)-alkyl; —C(O)—NH-alkyl; —C(O)—N(alkyl) 2 ; —C(O)—NH 2 ; —O-alkyl; -heterocyclyl; —NH-heterocyclyl; —NH—S(O) 2 -alkyl; —S(O) 2 —NH 2 ; and —S(O)-alkyl, wherein when said at least one substituent contains an alkyl group, the alkyl group is unsubstituted or substituted with —OH; or a group —CN; —C(O)—NH 2 ; —C(O)—NH-heterocyclyl; —C(O)—NH—NH—C(O)—NH 2 ; or —C(O)—NH—NH—C(O)-alkyl, which alkyl is unsubstituted or substituted with —NH(alkyl); or —N(alkyl) 2 ; and R 2 is halogen; heterocyclyl; alkyl; —NH—C(O)-alkyl; —NH—S(O) 2 -alkyl; —(CH 2 ) m —S(O) 2 —NH 2 ; —(CH 2 ) m —S(O) 2 —N(alkyl) 2 ; —(CH 2 ) m —S(O) 2 —NH—(alkyl); —O-alkyl; or —S(O) n -alkyl, wherein when R 2 contains an alkyl group, the alkyl group is unsubstituted or substituted by —OH; —O-alkyl; —NH-alkyl; or —N(alkyl) 2 ; m is 0, 1, 2, 3, 4, 5 or 6; n is 0, 1 or 2; or pharmaceutically acceptable salts thereof.