A novel sulphur glycoside from the seeds of Descurainia sophia (L.)

Abstract

A new sulphur glycoside, named descurainoside (1), and the known compound sinapic acid (2) have been isolated from the seeds of Descurainia sophia (L.) Webb ex Prantl. The structure of 1 has been identified as (1R,6S,8R,9S,10S)-9,10-dihydroxy-4-[(4-hydroxy-3,5-dimethoxyphenyl)methylene]-8-(hydroxymethyl)-2,7-dioxa-5-thiabicyclo[4.4.0]decan-3-one by means of physico-chemical properties and spectroscopic methods (1D and 2D NMR, HRMS, ESI-MS).

Keywords:

• Descurainia sophia (L) Webb ex Prantl
• Sulfur glycoside
• (1R,6S,8R,9S,10S)-9
• 10-Dihydroxy-4-[(4-hydroxy-3, 5-dimethoxyphenyl)methylene]-8-(hydroxymethyl)-2
• 7-dioxa-5-thiabicyclo[4.4.0]decan-3-one

Acknowledgements

Special thanks are due to the Analytical Detective Center, Shenyang Pharmaceutical University for recording ESI-MS and NMR spectra.