Ontology highlight
ABSTRACT:
SUBMITTER: Feng WS
PROVIDER: S-EPMC6274139 | biostudies-other | 2016 Jun
REPOSITORIES: biostudies-other
Molecules (Basel, Switzerland) 20160603 6
Four new monoterpenoid glycosides 1-4, named magnoliaterpenoid A-D, were isolated from a 50% aqueous acetone extract of flower buds of Magnolia biondii, along with one known compound, (1'R,3'S,5'R,8'S,2Z,4E)-dihydrophaseic acid 3-O-β-d-glucopyranoside (5). Their structures and relative configuration were identified by extensive spectroscopic analysis (IR, UV, MS, 1D and 2D NMR). The aglycones of these four new compounds possess seven-membered rings systems, which are very rare. A plausible biosy ...[more]