Drychampones A–C: Three Meroterpenoids from <i>Dryopteris championii</i> Neng-Hua Chen Yu-Bo Zhang Xiao-Jun Huang Lin Jiang Si-Qi Jiang Guo-Qiang Li Yao-Lan Li Guo-Cai Wang 10.1021/acs.joc.6b01720.s001 https://acs.figshare.com/articles/journal_contribution/Drychampones_A_C_Three_Meroterpenoids_from_i_Dryopteris_championii_i_/3827517 Three novel sesquiterpenoid-based meroterpenoids, drychampones A–C (<b>1</b>–<b>3</b>, respectively), were isolated from <i>Dryopteris championii</i>. Compounds <b>1</b> and <b>3</b> possessed a novel carbon skeleton which was constructed by an 11/6/6 ring system coupled with a pyronone moiety, and <b>1</b>–<b>3</b> were three racemates. Their structures and absolute configurations were elucidated by NMR, MS, and computational methods. The hypothetical biosynthetic pathways of these meroterpenoids and their antibacterial activities were also discussed. 2016-09-01 00:00:00 moiety configuration biosynthetic Compound method Dryopteris championii novel sesquiterpenoid-based meroterpenoids Drychampone Meroterpenoid novel carbon skeleton pyronone NMR pathway racemate drychampone MS