Verfahren zur Herstellung von Salzen cyclischer Amidine

摘要

The invention relates to a method for producing salts of cyclic amidines of general formula (I). Known methods for producing salts of compound (I) only produce low yields. According to the invention, the appropriate omega -amino- alpha -amino acids are selectively protected in the omega -amino function. These protected compounds are decarboxylated oxidatively using halogen derivatives and the oxidatively decarboxylated substances are then cyclised with acid being added. This results in better yields of the salts of compound (I).