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Ma W.-H.,Shanghai University | Ma W.-H.,Microscreen Biotechnology Co. | Tan C.-M.,Herbarium of Jiujiang Forestry Institute | He J.-C.,Microscreen Biotechnology Co. | And 2 more authors.
Chemistry of Natural Compounds | Year: 2011

Chemical investigation on the stems of Schisandra sphenanthera has afforded a novel eudesmene-type sesquiterpenoid, schisansphene A (1), and a known compound, alismol (2). Their structures and configurations were elucidated by spectroscopic methods, including 2D NMR techniques. © 2011 Springer Science+Business Media, Inc. Source


Zeng Z.-X.,Shanghai University | Ma W.-H.,Shanghai University | Ma W.-H.,Microscreen Biotechnology Co. | Li Y.-L.,Microscreen Biotechnology Co. | And 3 more authors.
Helvetica Chimica Acta | Year: 2012

Two new clerodane-type diterpenes, solidagocanins A and B (1 and 2, resp.), as well as two known compounds, mellein (3) and physcion (4), were isolated from the aerial parts of Solidago canadensis. The structures of the new compounds were elucidated by spectroscopic analyses, including 2D-NMR techniques. Copyright © 2012 Verlag Helvetica Chimica Acta AG, Zürich, Switzerland. Source


Ma W.-H.,Shanghai University | Ma W.-H.,Microscreen Biotechnology Co. | He J.-C.,Microscreen Biotechnology Co. | Duan P.-S.,Microscreen Biotechnology Co. | And 3 more authors.
Biochemical Systematics and Ecology | Year: 2010

A new dibenzocyclooctane lignan, schisanbicolorin A, together with fifteen known lignans, were isolated from the stems of Schisandra bicolor Cheng. Their structures were identified as (aS,6R,7S)-5,6,7,8-tetrahydro-2,3,13-trimethoxy-6,7-dimethyldibenzo[3,4]cycloocta [1,2-f][1,3]benzodioxol-1-ol (1), neglschisandrin C (2), angeloylgomisin R (3), schisantherin D (4), gomisin F (5), schisantherin B (6), tigloylgomisin Q (7), gomisin G (8), interiotherin B (9), schisandrin (10), angeloylgomisin H (11), benzoylgomisin H (12), gomisin H (13), angeloyl-(+)-gomisin K3 (14), deoxyschizandrin (15), and (+)-gomisin K3 (16), respectively, based on spectroscopic analysis and by comparison of their spectral data with those reported previously in the literature. © 2010. Source

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