2,9-diamino- and 2-amino-8-carbamoyl-4-hydroxy-alkanoic acid amid derivatives

摘要

5,9-Diamino- or 5-amino-8-carbamoyl-4-hydroxyalkanoamide derivs. of formula (I) are new: R1 = e.g. arylamino; X = CO or CH2; R2,R3 = H or lower alkyl; or CR2R3 = cycloalkylidene; R4 = e.g. H; R5 = e.g. OH; R6 = H, lower alkyl, lower alkenyl, etc.; R7 = H or lower alkyl; or CR6R7 - cycloalkylidene; R8 = e.g. aliphatic gp..