A novel 8,4′-oxyneolignan diglycoside from Ligusticum sinensis
作者:Jian Ping Ma、Chang Heng Tan、Da Yuan Zhu、Ling Jin
DOI:10.1016/j.cclet.2011.07.018
日期:2011.12
A novel 8,4 '-oxyneolignan diglycoside, named ligusinenoside D (1), was isolated from the rhizomes of Ligusticum sinensis, together with five known analogues 2-6. The absolute configurations of 1 and 2 were elucidated by means of enzymatic hydrolysis and spectroscopic data. (C) 2011 Jian Ping Ma. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Revised structure for a neolignan from Brucea javanica
作者:Shiming Li、Knut Lundquist、Adrian F.A Wallis
DOI:10.1016/s0031-9422(98)00449-x
日期:1998.12
On the basis of H-1 and C-13 NMR spectral comparison with natural and synthetic compounds, the neolignan isomers isolated from Brucea javanica for which unusual 8-O-6'-structures were proposed have been reassigned to the conventional 8-O-6'-structures (erythro and threo-guaiacylglycerol-beta-coniferyl ether), respectively. Thus far, there is no evidence for the existence of 8-O-6'-neolignans in nature. (C) 1998 Elsevier Science Ltd. All rights reserved.
Structures of New Aromatics Glycosides from a Japanese Folk Medicine, the Roots of Angelica furcijuga
Three new aromatics glycosides, hyuganosides II, IIIa, and IIIb, were isolated from a Japanese folk medicine, the roots of Angelica furcijuga KITAGAWA. The structures of the new glycosides were determined on the basis of chemical and physicochemical evidence.