1-Phenanthrenecarboxylic acid, 7-ethenyl-1,2,3,4,4a,6,7,8,8a,9,10,10a-dodecahydro-1,4a,7-trimethyl-, (1R,4aR,7S,8aS,10aS)-

Acanthoic acid is a pimaradiene diterpene isolated from Acanthopanax koreanum. It has been reported to have anti-inflammatory activities. Acanthoic acid downregulates LPS-induced TNF-α, IL-6 and IL-1β production in BALF, attenuates lung histopathologic changes, and inhibits inflammatory cytokines by stopping TNF-α, IL-6 and IL-1β production and NF-κB activation in LPS-stimulated alveolar macrophages.

Acanthoic acid (NP1302) is a natural product[1].