6-hydroxynicotinic acid (6-OHNA) is exploited in the use of NMR spectroscopy or gas chromatography--mass spectrometry for the diagnosis of Pseudomonas aeruginosa in urinary tract infection.

KS370G (Caffeic Acid Phenethyl Amide) inhibits UUO-induced renal fibrosis marker expression.

Dihydroevocarpine shows potent anti-Helicobacter pylori activity with the minimum inhibitory concentration (MIC) value of 10-20 microg/ml. Dihydroevocarpine is a moderate modulator of p-glycoprotein (p-gp) activity; it shows more potent inhibitory effects against MAO-B compared to MAO-A.