Isolation and structure elucidation of iridoide and coumarin derivatives from xeromphis nilotica (Rubiaceae)

摘要

Besides a known coumarin derivative,scopoletin,the iridoids gardenoside,alpha- and beta-gardiolwere isolated for the first time froma Xeromphis species,namely Xeromphis nilotica.Their structures were established on the basis of their spectroscopic data.