INTERMEDIATE FOR PRODUCTION OF HEPTANOL-GLU-ASP-ALA- AMINO ACID IMMUNE ACTIVATING DRUG

摘要

Compounds of the formula …… wherein R<1> is hydrogen or benzyl;… R<2> is hydrogen or methyl; …… wherein Z is hydrogen or carbobenzyloxy; and Y is hydrogen or t-butoxycarbonyl, and pharmaceutically acceptable salts of those compounds wherein at least one of Y, Z, R<1> or R<2> is hydrogen. …These compounds are useful as anti-infective agents and immunomodulators for stimulation of host defences in patients with an increased risk of bacterial infections.