Ontology highlight
ABSTRACT:
SUBMITTER: Zhang D
PROVIDER: S-EPMC6749297 | biostudies-literature | 2019 Aug
REPOSITORIES: biostudies-literature
Zhang Dongdong D Shi Yanhong Y Xu Rui R Du Kang K Guo Fujiang F Chen Kaixian K Li Yiming Y Wang Rui R
Molecules (Basel, Switzerland) 20190829 17
Five pairs of alkaloid enantiomers (<b>1a/1b</b>-<b>5a/5b</b>) were obtained from <i>Isatis indigotica</i> (<i>I. indigotica</i>) roots. Among them, <b>1a/1b, 2a/2b</b> and <b>3a/3b</b> were determined as three pairs of new alkaloid enantiomers. Their structures were elucidated by physicochemical properties and spectroscopic methods. The absolute configurations were deduced by comparison of their experimental circular dichroism (CD) and calculated electronic circular dichroism (ECD) spectra, as ...[more]