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  • Title: Hydroxyclerodanes from Salvia shannoni.
    Author: Bautista E, Toscano A, Calzada F, Díaz E, Yépez-Mulia L, Ortega A.
    Journal: J Nat Prod; 2013 Oct 25; 76(10):1970-5. PubMed ID: 24099364.
    Abstract:
    Six new hydroxyclerodanes (1-6), named sepulturins A-F, and four known diterpenes were isolated from the leaves of Salvia shannoni. The structures of these compounds were established by extensive analysis of their NMR and MS spectroscopic data. The relative configurations of compounds 1 and 2 were determined by NOESY experiments and were confirmed by single-crystal X-ray diffraction studies. All of the isolated diterpenes possess tertiary OH groups. The structure of infuscatin (7), a clerodane previously isolated from S. infuscata, was revised. Cytotoxic, antiprotozoal, and anti-inflammatory activities of these compounds were evaluated.
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