Three new oleanane-type triterpenoid saponins from the seeds of Celosia cristata L. |
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| Authors: | Xin Liu Jifa Zhang Kai Guo Airong Jia Miansong Zhang Yaping Shi |
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| Institution: | 1. Key Laboratory for Biosensors of Shandong Province, Biology Institute of Shandong Academy of Sciences, Jinan, China;2. Fengxian Hospital, Southern Medical University, Shanghai, China |
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| Abstract: | Phytochemical investigation of the 1-butanol soluble fraction of 60% ethanol extract of the seeds of Celosia cristata L. led to the identification of three new oleanane-type triterpenoid saponins. Using 1D and 2D NMR experiment methods, ESI-MS analysis and acid hydrolysis, their structures were identified as 3-O-β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl]-2β-hydroxy-oleanolic acid-28-O-β-D-glucopyranoside (1), 3-O-β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl]-2β, 23-dihydroxy-oleanolic acid-28-O-β-D-glucopyranoside (2) and 3-O-β-D-glucopyranosyl-(1 → 4)-β-D-glucopyranosyl]-2-hydroxyl-medicagenic acid-28-O-β-D-glucopyranosyide (3), respectively. |
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| Keywords: | Celosia cristata chemical constituent triterpenoid saponin |
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