Abstract:From the fresh roots of Stellaria yunnanensis Franch. a new cyclopeptide named stellarin A, was obtained and its structure was established to be cyclo(Gly-Pro-Phe-Tyr-Gly-Gly-Pro) by FAB-MS in a previous communication.Recently by a combination of 2D-NMR, FAB-MS and enzymatic degradation,its structure was re-examined and revised to cyclo(Gly-Pro-Phe-Pro-Gly-Tyr-Gly).