Ontology highlight
ABSTRACT:
SUBMITTER: Nam JW
PROVIDER: S-EPMC6151646 | biostudies-literature | 2017 Oct
REPOSITORIES: biostudies-literature
Molecules (Basel, Switzerland) 20171017 10
A new diarylheptanoid containing a chalcone moiety, katsumain H (<b>1</b>), was isolated from the seeds of <i>Alpinia katsumadai</i>. The structure was elucidated using a combination of 1D/2D NMR spectroscopy and mass spectrometry data analysis. The absolute configurations of C-3, C-5, and C-7 in <b>1</b> were assigned based on its optical rotation and after comparing its NMR chemical shifts with those of its diastereoisomers, katsumain E and katsumain F, which were previously isolated from this ...[more]