Isolation and Structure Elucidation of Two Triterpene Saponins from the Roots of Phytolacca Americana

Purification of the n-BuOH fraction of the aqueous alcoholic extract from the roots of Phytolacca americana resulted in the isolation of two triterpene saponins named esculentoside B (1), and esculentoside A (2). The structures of isolated compounds were characterized on the basis of extensive spectral data (1D and 2D NMR; and MS) and in comparison with their Nuclear Magnetic Resonance (NMR) and Mass (MS) spectral data reported earlier. Keyword: Phytolacca americana, Triterpene saponins, Isolation and purification, NMR, MS, Structure elucidation.