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J Asian Nat Prod Res. 2011 Jun;13(6):566-9. doi: 10.1080/10286020.2011.573789.

Cichorin A: a new benzo-isochromene from Cichorium intybus.

Author information

1
Department of Chemistry, Universitat Paderborn, Warburger Strasse 100, Paderborn, Germany.

Abstract

One new benzo-isochromene, named cichorin A (1), together with three known compounds oleanolic acid, β-sitosterol, and β-sitosterol glucopyranoside, was isolated from Cichorium intybus. The structure of the new compound was elucidated by detailed spectroscopic analysis such as (1)H, (13)C NMR, COSY, HMQC, HMBC, and HR-EI-MS. Relative configuration of asymmetric centers of cichorin A (1) was determined by the analysis of the (1)H NMR coupling constants together with the NOESY experiment.

PMID:
21623522
DOI:
10.1080/10286020.2011.573789
[Indexed for MEDLINE]

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