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KMID : 0620720210270020122
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Natural Product Sciences
2021 Volume.27 No. 2 p.122 ~ p.139
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Steroidal Saponins from Dracaena humilis (Dracaenaceae) and their Chemotaxonomic Significance
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Mouzie Cedric Mbiesset
Ponou Beaudelaire Kemvoufo
Fouedjou Romuald Tematio
Teponno Remy Bertrand
Tapondjou Leon Azefack
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Abstract
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A new steroidal saponin, (23S,24S)-spirosta-5,25(27)-diene-1β,3β,23,24-tetrol 1-O-((2,3-diacetyl-α-L-rhamnopyranosyl)-(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 spectral techniques including mass spectrometry (ESIMS, HRESIMS, tandem MS-MS), 1D NMR (1H, 13C NMR), 2D NMR (HSQC, 1H-1H COSY, HMBC, NOESY), chemical method as well as by comparison with spectroscopic data reported in the literature. The chemotaxonomic significance of the isolation of these compounds is discussed. This is the first report on the phytochemical investigation of D. humilis.
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KEYWORD
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Dracaena humilis, Dracaenaceae, Steroidal saponins
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