Phytochemistry p. 849 - 852 (1984)
Update date:2022-08-11
Topics:
Savona, Giuseppe
Bruno, Maurizio
Piozzi, Franco
Servettaz, Orietta
Rodriguez, Benjamin
From the aerial part of Teucrium massiliense three new neo-clerodane diterpenoids, deacetylajugarin-II, teumassilin and 6,19-diacetylteumassilin, have been isolated, besides the previously known diterpenes montanin C and teucjaponin A.The structures of deacetylajugarin-II (4α,18-epoxy-6α,19-dihydroxy-neo-clerodan-13-en-15,16-olide), teumassilin (4α,18:15,16-diepoxy-6α,12S,19-trihydroxy-neo-cleroda-13(16),14-diene) and 6,19-diacetylteumassilin (6α,19-diacetoxy-4α,18:15,16-diepoxy-12S-hydroxy-neo-cleroda-13(16),14-diene) were established by chemical and spectroscopic means.In addition, the previously known flavones salvigenin and cirsimaritin have also been obtained from the same source.Key Word Index - Teucrium massiliense; Labiatae; diterpenoids; neo-clerodane derivatives; teumassilin; 6,19-diacetylteumassilin; deacetylajugarin-II; montanin C; teucjaponin A.
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