Patent ID: 7632951

Claim:
Compounds of the formula I in which R 1 , R 1′ and R 1″ are H or phenyl, R 2 is A, Ar, (CH 2 ) m XA, (CH 2 ) m OH, (CH 2 ) m NH 2 , (CH 2 ) m NHA, (CH 2 ) m NA 2 , (CH 2 ) m NHCOA, (CH 2 ) m NO 2 , (CH 2 ) m COOR 1 , (CH 2 ) m CONH 2 , (CH 2 ) m X(CH 2 ) o Ar, (CH 2 ) m X(CH 2 ) o CHAr 2 , (CH 2 ) m X(CH 2 ) o CAr 3 , (CH 2 ) m XCOYA, (CH 2 ) m XCOY, (CH 2 ) o Ar, (CH 2 ) m X(CH 2 ) o YA, (CH 2 ) m X(CH 2 ) o NHCOA, (CH 2 ) m NHCONHR 2 ′, (CH 2 ) m CH 2 A, (CH 2 ) m CHA 2 , (CH 2 ) m CA 3 , (CH 2 ) m Ar(CH 2 ) m , CHAr 2 (CH 2 ) m , CAr 3 (CH 2 ) m cycloalkyl, (CH 2 ) m —NH—C(═NH)— 2 , or (CH 2 ) m —(HN═)C—NH 2 , where X and Y, independently of one another, are S, O, S═O, SO 2 or NH, where, if R 2 ═(CH 2 ) m XCOYA or (CH 2 ) m XCOY(CH 2 ) o Ar, X and Y cannot be S═O or SO 2 , R 2′ is H or A, R 3 is Het 2 -NH—, where the primary amino group is optionally provided with an amino-protecting group, A is alkyl having from 1 to 8 carbon atoms, Ar is phenyl, naphthyl, anthranyl or biphenyl, each of which is unsubstituted or monosubstituted or polysubstituted by Hal, A, OA, OH, CO-A, CN, COOA, COOH, CONH 2 , CONHA, CONA 2 , CF 3 , OCF 3 or NO 2 , Het 2 is pyridyl which is unsubstituted or monosubstituted or disubstituted by NH 2 or NHA, Hal F, Cl, Br or iodine, m is 0, 1, 2, 3, 4, 5, 6 or 8, n is 1, 2, 3, 4, 5 or 6, and o is 0, 1, 2 or 3, or a physiologically acceptable salt thereof.