Topical anti-inflammatory activity of 2α-hydroxy pentacyclic triterpene acids from the leaves of Ugni molinae. - Aguirrea,M.C.; Delportea,C.; Backhousea,N.; Erazoa,S.; Letelierb,M.E.; Casselsc,B.K.; Silvad,X.; Alegriae,S.; Negretea,R. (Bioorg Med Chem, 2006)