jo6b01720_si_001.pdf (1.84 MB)
Drychampones A–C: Three Meroterpenoids from Dryopteris championii
journal contribution
posted on 2016-09-01, 00:00 authored by Neng-Hua Chen, Yu-Bo Zhang, Xiao-Jun Huang, Lin Jiang, Si-Qi Jiang, Guo-Qiang Li, Yao-Lan Li, Guo-Cai WangThree novel sesquiterpenoid-based
meroterpenoids, drychampones
A–C (1–3, respectively), were
isolated from Dryopteris championii. Compounds 1 and 3 possessed a novel carbon skeleton which
was constructed by an 11/6/6 ring system coupled with a pyronone moiety,
and 1–3 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.