Anti-neoplastic, anti-viral or anti-retroviral spermine derivatives

The present invention provides a compound having one of the formulae: Wherein: R₁ and R₆ may be the same or different and are H, alkyl or aralkyl having from 1 to 12 carbon atoms, provided that R₁ and R₆ are not H; R₇ is H, alkyl, aryl or aralkyl having from 1 to 12 carbon atoms; m is an integer from 3 to 6, inclusive; and n is an integer from 3 to 6, inclusive, or (IV), a salt thereof especially for anti-neoplastic, anti-psoriasis, anti-viral or anti-retroviral therapy or for controlling the growth of insects.