Intracerebroventricular administration of synthetic peptides Beta-amyloid (12-20), (12-28), and (18-28) causes amnesia in mice. These peptides have only amino acid residues VFF at position 18 to 20 in common, suggesting the amnestic effect of the triad.

Amyloid β-Peptide (1-42) human is a 42-amino acid peptide which plays a key role in the pathogenesis of Alzheimer disease.

Sophoridine, a natural anticancer drug, has been used in China for decades. A series of novel N-substituted Sophoridinic acid derivatives were synthesized and evaluated for their cytotoxicity with 1 as the lead.