Identification of lignans and related compounds in Anthriscussylvestris by LC–ESI-MS/MS and LC-SPE–NMR
2011
Hendrawati, Oktavia | Woerdenbag, Herman J. | Michiels, Paul J.A. | Aantjes, Herald G. | van Dam, Annie | Kayser, Oliver
The aryltetralin lignan deoxypodophyllotoxin is much more widespread in the plant kingdom than podophyllotoxin. The latter serves as a starting compound for the production of cytostatic drugs like etoposide. A better insight into the occurrence of deoxypodophyllotoxin combined with detailed knowledge of its biosynthestic pathway(s) may help to develop alternative sources for podophyllotoxin. Using HPLC combined with electrospray tandem mass spectrometry and NMR spectroscopy techniques, we found nine lignans and five related structures in roots of Anthriscus sylvestris (L.) Hoffm. (Apiaceae), a common wild plant in temperate regions of the world. Podophyllotoxone, deoxypodophyllotoxin, yatein, anhydropodorhizol, 1-(3′-methoxy-4′,5′-methylenedioxyphenyl)1-ξ-methoxy-2-propene, and 2-butenoic acid, 2-methyl-4-[[(2Z)-2-methyl-1-oxo-2-buten-1-yl]oxy]-, (2E)-3-(7-methoxy-1,3-benzodioxol-5-yl)-2-propen-1-yl ester, (2Z)- were the major compounds. α-Peltatin, podophyllotoxin, β-peltatin, isopicropodophyllone, β-peltatin-a-methylether, (Z)-2-angeloyloxymethyl-2-butenoic acid, anthriscinol methylether, and anthriscrusin were present in lower concentrations. α-Peltatin, β-peltatin, isopicropodophyllone, podophyllotoxone, and β-peltatin-a-methylether have not been previously reported to be present in A. sylvestris. Based on our findings we propose a hypothetical biosynthetic pathway of aryltetralin lignans in A. sylvestris.
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