Abstract

Phytochemical investigation on the aerial parts of Salvia deserta led to the isolation of eight new pentacyclic triterpenoids including three oleanane- (1 − 3) and five ursane-type (4 − 8) triterpenoids, whose structures were elucidated based on extensive spectroscopic analysis and quantum chemical calculation. Weak immunosuppressive potency was observed for compounds 1, 2, and 4 − 8 via inhibiting the secretion of cytokines TNF-α and IL-6 in LPS-induced macrophages RAW264.7 at 20 μM. In addition, compounds 1, 2, and 4 − 6 exhibited moderate protective activity on t-BHP-induced oxidative injury in HepG2 cells.

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