6-O-Methylcatalpol is a natural product that is isolated from the roots of S. ningpoensis.

RR-11a analog is a potent and selective asparaginyl endopeptidases (AE) (Legumain) inhibitors(IC50 values of 4.5 nM, 4.5 nM and 31 nM for AE1 in Trichomonas Vaginalis, AE in Ixodes ricinus and AE in Schistosoma mansoni, respectively).

Carglumic acid is an orphan drug used for the treatment of hyperammonaemia in patients with N-acetylglutamate synthase deficiency. This rare genetic disorder results in elevated blood levels of ammonia, which can eventually cross the blood-brain barrier and cause neurologic problems, cerebral edema, coma, and death.