Iridoid and Phenylethanoid Glucosides from <i>Veronica lavaudiana</i>
作者:Rilka M. Taskova、Tetsuo Kokubun、Ken G. Ryan、Phil J. Garnock-Jones、Søren R. Jensen
DOI:10.1021/np200233p
日期:2011.6.24
are new; of these, lavaudiosides A, B, and C (2a, 3a, and 4) are 1-mannityl esters of 8-epiloganic acid, while 7e and 7f are 6′-O-caffeoyl derivatives of catalpol. The new phenylethanoid glycoside esters, heliosides A, B, and C (8b–d), are 6′-xylosyl derivatives of aragoside. The structures of the new compounds were elucidated mainly by spectroscopic analysis, but also by chemical degradation. We also