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Dichagelinoids A—C (1—3), three unusual dichapetalin‐type triterpenoids, together with two biogenetically related derivatives dichagelinoids D and E (4 and 5) were isolated and characterized by solid data from Dichapetalum gelonioides. Compounds 1—3 possess a common rearranged C ring and different C6—C2 modified motifs at the A rings. Biological evaluation revealed that compounds 1—3 showed distinct...
As part of our continuing efforts toward the discovery of the biologically active diterpenoids from medicinal plants, six new C‐ring aromatized abietane diterpenoids, clerodenoids A—F (1—6), were isolated from Clerodendrum chinense. These C‐ring aromatized compounds mainly belonged to the rearranged abietane skeletons of 17(15→16)‐abeo‐abietane (2—4) and 17(15→16), 18(4→3)‐diabeo‐abietane (5 and 6)...
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