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

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). [ABSTRACT FROM AUTHOR]