L-di or tripeptides possessing a biological activity for use in human and veterinary medicines, process for their obtention and medicines containing them

摘要

A process for the synthesis of phosphonic di- or tripeptides of L configuration by reaction of an alpha -aminoacid or of a carboxylic dipeptide with an alpha -aminophosphonic acid or of an alpha -aminocarboxylic acid with a phosphonic dipeptide of L configuration, the reaction being carried out in the presence of an enzyme such as papain with phase separation; the invention also relates to the new products obtained and to medicines containing the said phosphonic di- or tripeptides.