AI Article Synopsis

  • - The study isolated compounds 1a, 2a, and 3 (clinopodiolides A-C) as well as clinopodiolide D from the aerial parts of *Salvia clinopodioides*, which include unique structural features like a lactol moiety.
  • - These compounds were analyzed using various spectroscopic techniques, primarily H and C NMR, to confirm their structures.
  • - The isolates exhibited significant antioxidant properties, with compounds 2a and 3 outperforming α-tocopherol in lipid peroxidation inhibition and showing moderate antiamoebic, antigiardial, and antipropulsive effects.

Article Abstract

The aerial parts of Salvia clinopodioides afforded abietanes 1a, 2a, and 3 (clinopodiolides A-C), two of which possess an unusual lactol moiety at C-19-C-20, together with an icetexane named clinopodiolide D (4a). Their structures were established by spectroscopic means, mainly H and C NMR, including 1D and 2D homo- and heteronuclear experiments. The antioxidant, antiprotozoal, and antidiarrheal effects of the isolates were evaluated. Compounds 2a and 3 showed better effects than α-tocopherol in the inhibition of lipid peroxidation with IC (μM) = 5.9 ± 0.1 and 2.7 ± 0.2, respectively, and moderate activity in the DPPH assay. All tested compounds showed moderate antiamoebic and antigiardial activity, as well as a good antipropulsive effect.

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Source
http://dx.doi.org/10.1021/acs.jnatprod.8b00952DOI Listing

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