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Articles

New steroidal glycosides from the fibrous roots of Ophiopogon japonicus

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Pages 744-751 | Received 15 May 2018, Accepted 16 May 2018, Published online: 17 Jul 2018
 

Abstract

Two new steroidal glycosides (named fibrophiopogonins A, B), along with one known glycoside, were isolated from the fibrous roots of Ophiopogon japonicus (Liliaceae). Comprehensive spectroscopic analysis, including 2D NMR spectroscopy, and the results of acid hydrolysis allowed the chemical structure of the compounds to be assigned as 26-[(O-β-D-glucopyranosyl-(1 → 6)-D-glucopyranosyl)]-barogenin- 3-O-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside and (25R)-26-[(O- β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl)]- 3β,22α,26- trihydroxyfurost- 5-ene-3-O-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside. This is the first isolation of a cholestane glycoside with disaccharide moiety from a Ophiopogon species. The cytotoxic activities of 1~3 against A375 and MCF-7 cells are described.

Acknowledgments

Thanks are also extended to Professor Liang Qiao for NMR measurements.

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