Soren Jensen

Soren Jensen
University of Southern Denmark | SDU · Department of Technology and Innovation

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5
Publications
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167
Citations

Publications

Publications (5)
Article
A new benzoic acid ester, 2-E-[2"-oxo-cyclopent-3"-en-l"-ylidene]ethyl benzoate, together with tritriacontane, tetratriacontanol and beta-sitosterol have been isolated from a petrol extract of the leaves of Uvaria narum. The structure of the new ester has been established on the basis of spectral data and finally confirmed by X-ray crystallography....
Article
The stems and leaves of Piper clarkii have yielded two new neolignans [nomenclature follows Gottlieb, O. R. (1978) Prog. Chem. Org. Nat. Prod.35, 1], rel-(7R,8R,1′S,3Ŕ,4′S)-Δ8′-1′,2′,3′,4′-tetrahydro-4′-hydroxy-5′- methoxy-3,4-methylenedioxy-2′-oxo-7.3′,8. 1′-lignan (clarkinol) and (7R,8R, 1′S)-Δ8′- 1′,6′-dihydro- 1′,3,4-trimethoxy-6′- oxo-7.0.4′,8...
Article
During the past decade many new lignans and neolignans have been isolated from the Piperaceae. Lignans and neolignans are known to possess biological activity. This review summarizes the structures of lignans and neolignans presently known in the Piperaceae.
Article
The unknown enantiomeric lignan (−)-machilin G and the known lignans (+)-calopiptin, (−)-zuionin A as well as a new neolignan kadsurin A and known neolignans futoquinol, isodihydrofutoquinol A, isodihydrofutoquinol B, along with parsley apiole, have been isolated from the leaves and stem of Piper schmidtii. The unpublished 13C NMR data of the above...

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