Tyroserleutide hydrochloride is a small molecule tripeptide isolated from the degradation product of pig spleen, which can inhibit tumor growth in vivo and in vitro.

β-amyloid (15-21) is a fragment of Amyloid-β peptide, maybe used in the research of neurological disease. This fragment is involved in beta sheet formation.

Schisanwilsonin H is a natural product.