Research Article Open Access

(+)-Syringaresinol Lignan from New Species Magnolia Thailandica

Wisit Monthong1, Siripit Pitchuanchom1, Narong Nuntasaen2 and Wilart Pompimon1
  • 1 Laboratory of Natural Products and Center for Innovation in Chemistry, Faculty of Science, Lampang Rajabhat University, 52100 Lampang, Thailand
  • 2 Department of National Park, Forest Herbarium, Wildlife and Plant Conservation, Ministry of Natural Resources and Environment, 10900 Bangkok, Thailand


Problem statement: Magnolia, an ancient genus, is a large genus of about 210 flowering plant species in the subfamily Magnolioideae of the family Magnoliaceae. Having evolved before bees appeared, the flowers developed to encourage pollination by beetles. Members of this family are rich in a wide variety of biological active compounds including lignans. Magnolia thailandica, a new species for Thailand and world, has not been studied chemical composition. The present study described a phytochemical study of twigs of M. thailandica. Approach: In order to identifying natural product compounds for medicinal use, M. thailandica endimic to grow in Thailand was studied. It is shown that this plant is excellent sources of raw material for investigation lignan such as syringaresinol. Thus, the conducted research that we conducted on the above M. thailandica consisted of two steps: (1) establishing a methodology for isolation and purification of lignan compound, (2) identification of the compound using UV, MS, IR and a combination of 1D and 2D NMR spectral analysis. Results: The constituents of dichloromethane: methanol extract of M. thailandica has been investigated. We isolated and identified one bis-tetrahydrofuran-type, syringaresinol lignan derivative. The structure of this compound was elucidated on the basis of spectroscopic evidence. Conclusion: Studies on dichloromethane: methanol extract of M. thailandica has now resulted the isolation and structural characterization of syringaresinol. However, no phytochemical study has been carried out on this species.

American Journal of Applied Sciences
Volume 8 No. 12, 2011, 1268-1271


Submitted On: 19 September 2011 Published On: 11 October 2011

How to Cite: Monthong, W., Pitchuanchom, S., Nuntasaen, N. & Pompimon, W. (2011). (+)-Syringaresinol Lignan from New Species Magnolia Thailandica. American Journal of Applied Sciences, 8(12), 1268-1271.

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  • Magnolia thailandica
  • magnoliaceae
  • (+)-syringaresinol lignan