Abstract: The present invention relates to the use of at least one compound of formula (I) or (II), in which R1 is H and n is an integer from 2 to 10, for the preparation of a medicament for treating diseases chosen from the group comprising tumour, cancer, viral disease, bacterial disease, fungal disease, disease of the immune system, auto-immune disease or disease linked to a deficiency in immunostimulation, in human beings and warm-blooded animals. The invention also relates to new products having a mannose or mannitol termination as well as a method for preparing them.

Abstract: Disclosed are compositions comprising and methods of using sulphated or phoshated polysaccharides for the treatment of diseases caused by herpes viruses, more particularly by alpha-herpes viruses, and in particular by HSV-1 and HSV-2, as well as by strains of these viruses which are resistant to known antiviral agents.