A new cycloartane glycoside fromcamptosorus sibiricusrupr

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A new cycloartane glycoside was isolated from the dried whole herbs of Camptosorus sibiricus Rupr By means of chemical (hydrolysis) and spectroscopic methods (IR, 1D, and 2D NMR, ESI-MS), the structure was established as 3β, 7β, 24β, 25, 30-pentahydroxycycloartane-3- Oβ-D-glucopyranoside-24- O-β-D-glucopyranoside (1).

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