A New ent-kaurane Diterpene Glycoside from Seeds of Pharbitis nil
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DOI: 10.1007/s10600-017-2024-1
Abstract: A new ent-kaurane diterpene glycoside, pharboside H (1), and three known compounds, benzyl β-D-glucopyranoside (2), 1-(4′-O-glucopyranosyl-4′-hydroxy-3′,5′-dimethoxyphenyl)-2{2′′,6′′-dimethoxy-4′′-[1-(E) propen-3-ol]-phenoxy}-propane-l,3-diol (3), and butyl caffeate (4), were isolated from the seeds of Pharbitis nil. The structure of the new… read more here.
Keywords: new ent; pharbitis nil; kaurane diterpene; ent kaurane ... See more keywords
A New Ent-Kaurane from the Roots of Lasianthaea aurea
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DOI: 10.1007/s10600-021-03357-3
Abstract: A known kaurenoic acid (1), together with a new kaurane derivative named 3α-isobutyryloxykaurenoic acid (2), was isolated from the roots of Lasianthaea aurea, a plant endemic to Mexico. The compounds were characterized using their physical… read more here.
Keywords: kaurane roots; roots lasianthaea; new ent; ent kaurane ... See more keywords
New ent-kaurane diterpenes with chiral epoxyangelate moieties from Wedelia prostrata
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DOI: 10.1016/j.cclet.2018.05.038
Abstract: Abstract Four new ent-kaurane diterpenes with chiral epoxyangelate moieties, (2′R,3′R)-3α-(2′,3′-epoxyangeloyloxy)-kaur-16-en-19-oic acid (1), (2′S,3′S)-3α-(2′,3′-epoxyangeloyloxy)-kaur-16-en-19-oic acid (2), (2′S,3′R)-3α-(2′,3′-epoxyangeloyloxy)-kaur-16-en-19-oic acid (3) and (2′R,3′S)-3α-(2′,3′-epoxyangeloyloxy)-kaur-16-en-19-oic acid (4), along with eight known diterpenes (5−12), were isolated from Wedelia prostrata. The absolute… read more here.
Keywords: chiral epoxyangelate; epoxyangelate moieties; new ent; kaurane diterpenes ... See more keywords
New ent-Kaurane and cleistanthane diterpenoids with potential cytotoxicity from Phyllanthus acidus (L.) Skeels.
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DOI: 10.1016/j.fitote.2022.105133
Abstract: Six diterpenoids including three ent-kauranes (1-2, 4) and three cleistanthanes (3, 5-6) were isolated from the roots and stems of Phyllanthus acidus (L.) Skeels. Of them, (16S)-ent-16,17,18-tri-hydroxy-19-nor-kaur-4-en-3-one (1), phyllanthone A (2), and 6-hydroxycleistanthol (3) are… read more here.
Keywords: new ent; phyllanthus acidus; kaurane; acidus skeels ... See more keywords
A new ent-kaurane diterpene from Euphorbia stracheyi Boiss
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DOI: 10.1080/14786419.2016.1222385
Abstract: Abstract The chemical investigation of whole plants Euphorbia stracheyi Boiss from China led to the isolation of one new ent-kaurane diterpene, ent-Kaurane-16β,17,19-triol-3-one (1), along with three known ent-kaurane diterpenoids (2–4) as ent-Kaurane-3α,16β,17-triol (2)，ent-16S,17-dihydroxy-kaurane-3-one (3) and… read more here.
Keywords: new ent; stracheyi boiss; kaurane; ent kaurane ... See more keywords
New ent-kaurene-type nor-diterpene and other compounds isolated from Annona vepretorum Mart. (Annonaceae)
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DOI: 10.1080/14786419.2022.2027408
Abstract: Abstract A new nor-ent-kaurene diterpene and ten other compounds were isolated from Annona vepretorum stems, including four kaurene diterpenes, three alkamides, one sesquiterpene and two steroids. Their chemical structures were elucidated using spectroscopic methods, including… read more here.
Keywords: isolated annona; annona vepretorum; ent kaurene; kaurene ... See more keywords