Sesinoside, a new iridoid glucoside from sesame (sesamum indicum) seedlings

Abstract

A new iridoid glucoside, sesinoside (1), was isolated from the seedlings of Sesamum indicum. The structure of 1 was elucidated by spectroscopic analyses and by methanolysis of 1, which produced the known compounds, phlorigidosides C (2) and (6Z)-foliamenthic acid methyl ester (3). This is the first report of an iridoid glucoside with 3. Acknowledgments-This study was partially supported by a Grant-in-Aid for Scientific Research on Innovative Areas 'Chemical Biology of Natural Products' (Grant No. 24102509) from the Ministry of Education, Culture, Sports, Science and Technology, Japan.