- Steroidal Saponins from Dracaena humilis (Dracaenaceae) and their Chemotaxonomic Significance
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Mouzié CM, Ponou BK, Fouedjou RT, Teponno RB, Tapondjou LA
- KMID: 2517554
- Nat Prod Sci.
- 2021 Jun;27(2):122-127.
- doi: 10.20307/nps.2021.27.2.122
A new steroidal saponin, (23S,24S)-spirosta-5,25(27)-diene-1β,3β,23,24-tetrol 1-O-((2,3-diacetyl-α-Lrhamnopyranosyl)-(1→2)-[β-D-xylopyranosyl-(1→3)]-α-L-arabinopyranoside)-24-O-β-D-glucopyranoside (humilisoside) together with the known β-sitosterol 3-O-glucopyranoside, adenosine, dioscin, and methylprotodioscin were isolated from the leaves of Dracaena humilis. Their structures were elucidated by... -
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- A New Flavonol Glycoside from Tristemma hirtum (Melastomataceae)
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Kenfack JN, Ponou BK, Kühlborn , Teponno RB, Nono RN, Fouedjou R, Opatz T, Park HJ, Tapondjou
- KMID: 2422015
- Nat Prod Sci.
- 2018 Sep;24(3):213-218.
- doi: 10.20307/nps.2018.24.3.213
Chemical investigation of the plant Tristemma hirtum P. Beauv (Melastomataceae) resulted to the isolation of a new flavonol glycoside named quercetin-7-O-α-D-arabinofuranoside (1), together with nine known compounds including 3′-hexadecanoyl-2′-(9aZ)-tetradecanoyl-glycerol 1′-O-[β-D-galactopyranosyl-(1″→... -
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- Integracide K: A New Tetracyclic Triterpenoid from Desmodium uncinatum (Jacq.) DC. (Fabaceae)
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Tsafack BT, Ponou BK, Teponno RB, Nono RN, Jenett-Siems K, Melzig MF, Park HJ, Tapondjou
- KMID: 2387061
- Nat Prod Sci.
- 2017 Jun;23(2):113-118.
- doi: 10.20307/nps.2017.23.2.113
A new tetracyclic triterpenoid [4,4,24-trimethylcholesta-Δ(8,9;14,15;24,28)-trien-3β,11β,12α-triol-12-acetate, 3-sulfate] sodium salt (1), together with eight known compounds including ergosterol 5α,8α-endoperoxide (2), 1,9-dihydroxy-3-methoxy-2-methylpterocarpan (3), 3-O-β-D-2-acetyl-amino-2-deoxyglucopyranoxyloleanoic acid (4), hydnocarpin (5), derrone (6), isovitexin (7), erythrinin... -
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