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Molecules 2015, 20(9), 16255-16265;

Novel Steroidal Glycosides from the Bulbs of Lilium pumilum

School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 25 June 2015 / Revised: 25 August 2015 / Accepted: 31 August 2015 / Published: 8 September 2015
(This article belongs to the Section Natural Products Chemistry)
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Examination of the bulbs of Lilium pumilum (Liliaceae) led to the isolation of four novel steroidal glycosides (14) with a 2,3,4-trisubstituted β-d-glucopyranosyl unit. In 1 and 3, the α-L-arabinopyranosyl moiety is linked to C-3 of the inner trisubstituted β-D-glucopyranosyl group and is present as an usual 4C1 conformation. In contrast, in 2 and 4, the α-L-arabinopyranosyl moiety, which is attached to C-4 of the inner trisubstituted β-D-glucopyranosyl group, is present as a 1C4 conformation. The structures of the new steroidal glycosides were determined based on the results of spectroscopic analyses, including two-dimensional (2D) NMR data and hydrolysis. View Full-Text
Keywords: Lilium pumilum; Liliaceae; steroidal glycosides Lilium pumilum; Liliaceae; steroidal glycosides

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Matsuo, Y.; Takaku, R.; Mimaki, Y. Novel Steroidal Glycosides from the Bulbs of Lilium pumilum. Molecules 2015, 20, 16255-16265.

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