Abstract
Four neo-clerodane diterpenoids, neoajugapyrin A, scutegalerins A and B and scutecolumnin C have been isolated from the acetone extract of the aerial parts of Scutellaria galericulata. Neoajugapyrin A and scutecolumnin C are reported in this species for the first time, whereas scutegalerins A and B are new compounds. NMR data of neoajugapyrin A ar e discussed i n detail t o support t he proposed revised structure of ajugapyrin A.
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