Abstract
From the leaves of PENSTEMON DIGITALIS Nutt. a novel dimeric open-chain monoterpene glucoside, digipenstroside, in addition to the known phenylpropanoid glycoside martynoside has been isolated. The structure of digipenstroside was elucidated by spectroscopic means (FD-MS, (1)H-, (13)C-, and 2D-NMR spectroscopy) as 1-(beta- D-glucopyranosyl)-8-[8''-hydroxy-2''-6''-dimethyl-oct-2''( E),6''( E)-dienoyl]-5,8-dihydroxy-2,6-dimethylocta-2( E),6( E)-dienoate. Therefore digipenstroside belongs to a new type of natural compounds, comprising of two geraniol-type monoterpenes and glucose linked by esterification. The occurrence of such compounds together with intact iridoid glycosides might be of interest from the biogenetic point of view.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.