Abstract: Objects of the present invention are compounds of a peptido-mimetic character having the capacity of acting as inhibitors of metalloproteinases produced by venom of snake, and of other metalloproteinases of human origin which have been put in relation with various pathologies in man, including tumoral growth and metastatization, aterosclerosis, multiple sclerosis, Alzheimer's disease, osteoporosis, hypertension, rheumatoid arthritis and other inflammatory diseases. Object of the present invention is also the procedure for the production of diethylester of (1)-phosphotryptophan, as an initial product necessary to synthesize all compounds mentioned above.

Abstract: Uridine is a therapeutic agent active as a growth promoter for treatment of neuron degenerative diseases deriving from pathological ageing or selective destruction, in particular Uridine shows the same biological effects as NGF, when added at low doses to the culture medium, so that uridine may replace NGF as therapeutic agent in neural diseases and it may be also associated with other growth factors that allow differentiation of neurons, or with anti-cancer and anti-virus drugs that cause neuron damage. In addition uridine shows important trophic properties on various types of cultured cells, stimulating cell reproduction when used at rather high dose levels.