Coumarin dimer and sesquiterpene lactones from Carpesium lipskyi Winkl

摘要

Carpesilipskyin 1,a novel coumarin dimer which possesses a unique isopropyl side chain,together with two new sesquiterpene lactones,carabrol isovalerate 2 and 2'-hydroxy-4',6'-dimethoxy-benzoylcarpesiolin 3 have been isolated from the methanol extract of the aerial parts of the title herbal plant followed by structure elucidation on the basis of spectral data.