Cyclic Peptides from Higher Plants. 24. Yunnanin C, a Novel Cyclic Heptapeptide from <i>Stellaria yunnanensis</i>

Abstract

A novel cytotoxic cyclic heptapeptide, yunnanin C (1), was isolated from the roots of Stellaria yunnanensis. The structure of 1, cyclo(-Gly-Ile-Gly-Phe-Tyr-Ser-Pro-), was elucidated from spectroscopic evidence and by chemical degradation.