New diterpenoids from the aerial parts of Salvia reuterana

Document Type: Research article

Authors

1 Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G.C., Evin, Tehran, Iran

2 Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.

Abstract

The genus Salvia is a valuable origin of structurally diverse terpenoids. In a project directed at structurally interesting bioactive metabolites from Iranian Salvia species, we studied Salvia reuterana. Two new labdane diterpene, 6β,14α-dihydroxy-15-acetoxysclareol (1), and 14α,15- dihydroxy sclareol (2), were isolated from the aerial part of the plant. Their structures were established mainly by 1D and 2D NMR spectroscopic techniques, including 1H-1H COSY, HSQC and HMBC methods and HR-ESI-TOFMS spectral data. Compound 1 and 2 were tested for their inhibitory activity toward HeLa and MCF-7 cell lines. Our results showed that S. reuterana is a rich source of labdane diterpenoids. These compounds are rather rare in Salvia species, although they are frequently found in other genera of the Lamiaceae. S. reuterana is a new source of these diterpenoids.

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Iranian Journal of Pharmaceutical Research

Volume 18, Issue 1
Winter 2019
Pages 406-411

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