Sideritis serrata Labiatae

Beyerenes.—ent-l8- and -19-Hydroxybeyer-15-ene and the 15,16-epoxide have been isolated from Baccharis tola (Compositae), and 1,12- and 1,17-diacetoxyjativatriol have been detected as constituents of Sideritis serrata (Labiatae). 

Atisane is the basic skeleton of various diterpene alkaloids (aconitum-alkaloids) found in the plant families of Ranunculaceae and Garryaceae. (-)-Atisine, as a typical representative, was isolated from the Atis plant Aconitum heterophyllum (Ranunculaceae), which also contains (-)-15,20-dihydroxy-16-atisen-19-oic acid as the lactone (19,20-olide). Erythroxylon monogynum and related speeies are reported to contain (-)-16-atisene. Euphorbiaceae such as Euphorbia acaulis and E. fidjiana produce (-)-16a,17-dihydroxyatisan-3-one. (+)-13-Atisene-16p,17-diol is known as serradiol due to its natural occurrence in Sideritis serrata (Labiatae). 

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See also in sourсe #XX -- [ ]

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