Synthetic peptides are widely used to generate antibodies. To induce high antibody response, it is known to conjugate the peptide to a carrier protein (e.g. KLH, BSA) or to incorporate it into polylysine to form a multiple antigenic peptide. Anchors may be built in which are based on fatty acids. According to the invention there is provided a novel lipidic amino acid based anchor system which can maximally enhance the antigenicity of a short synthetic peptide. These novel compounds are entirely peptide-based and may therefore be produced automatically by some step wise peptide synthesis, preferably solid phase step wise peptide synthesis. According to the invention there is also provided such a process.