Platyconic Acid A, derived from changkil saponins extracted from platycodon grandiflorum, is a potent compound employed for studying the mitigation of airway inflammation.

Triacanthine which is a plant growth substance shows hypertensive and antitumor activity also cardiotonic antispasmodic and a respiratory analeptic.

Leritrelvir (RAY1216) is a potent orally active inhibitor of the SARS-CoV-2 main protease, exhibiting a slow-tight binding mechanism with an inhibition constant (Ki) of 8.6 nM .