abstract |
A compound of the general formula (I): A1 - A2 -NH-(CH¿2?)n - NH-C(NH)-NH2, wherein n is an integer 2, 3, 4, 5, or 6; preferably 3 or 4; A?1¿ represents a structural fragment of formulae (IIa), (IIb), (IIc), (IId) or (IIe); A2 represents a structural fragment (a), as well as processes for the preparation thereof, the use and the pharmaceutical formulations. |