dipeptide made up of derivatives, methods for their preparation and medicines containing these compounds

摘要

Compounds of formula (I) in which R1 and R2 are hydroxy or an acyloxy group and R3 is hydrogen, where R2 and R3 together may also signify a valency line. Process for their production from cyanobacteria of the Oscillatoria agardhii genus, and medicaments containing said compounds with a thrombin and trypsin inhibiting action.