Patent ID: 7112680

Claim:
A compound of the general formula: wherein Het= and wherein R=H, CH 3 , OCH 3 , OH, Cl, Br, F, CF 3 , NO 2 , NH 2 , NHCOCH 3 , N(CH 3 ) 2 , phenyl, CN, C=NH(NH 2 ), C=S(NH 2 ), C=NH(NHOH), COOH or COOR 4 , wherein R 4 =an aliphatic residue or a phenyl group, or CONR 5 R 6 , wherein R 5 and R 6 are H, an aliphatic substituent or a phenyl group, R 1 =H, methyl, ethyl, propyl, iso-propyl, butyl, tert-butyl, cyclopropyl, cyclohexyl, phenyl, benzyl or 2-pyridyl, and X=NH or N—R 2 , wherein R 2 =methyl, ethyl, propyl, sec.-propyl, butyl, tert.-butyl, allyl, cyclopropyl, phenyl, benzyl, CH 2 —CH 2 —O—CH 3 or CH 2 —CH 2 -n(CH 3 ) 2 , with the proviso that if wherein R=H, in case X=N: R 1 is not H, in case X=NH: R 1 is not methyl, in case X=N—R 2 with R 2 =CH 3 : R 1 is not methyl; as well as the pharmaceutically acceptable salts thereof.