Demethylzeylasteral has strong immunosuppressive activity, can be used in the fields of organ transplantation and autoimmune disorders.

Aminomalonic acid (Ama) was first detected in alkaline hydrolysates of proteins in 1984. Ama has been isolated from proteins of Escherichia coli and human atherosclerotic plaque. The presence of Ama has important biological implications because the malonic acid moiety potentially imparts calcium binding properties to protein.

Palmitoyl glutamic acid (N-Palmitoyl-L-glutamic acid) is an acyl amino acid that inhibits aortic constriction and counteracts haloperidol-induced oral motility disorders.