A New Photosystem II Electron Transfer Inhibitor from <i>Sorghum bicolor</i>
作者:Agnes M. Rimando、Franck E. Dayan、Mark A. Czarnota、Leslie A. Weston、Stephen O. Duke
DOI:10.1021/np9800708
日期:1998.7.1
Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystemII (PS II) inhibitor led to the isolation of a new benzoquinone derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8',11', 14'-pentadecatriene]-rho-benzoquinone (2), from the root exudate of sorghum. The structure of 2, which is being given the name 5-ethoxy-sorgoleone, was determined by spectroscopic means. A methoxy derivative (3) of