Unprecedented 8,9'-neolignans: enantioselective synthesis of possible stereoisomers for structural determination.
@article{Takahashi2014Unprecedented8E, title={Unprecedented 8,9'-neolignans: enantioselective synthesis of possible stereoisomers for structural determination.}, author={M. Takahashi and Noriyuki Suzuki and T. Ishikawa and H. Huang and Hsun-Shuo Chang and I. Chen}, journal={Journal of natural products}, year={2014}, volume={77 12}, pages={ 2585-9 } }
(+)-Wutaienin (3) and its C-7 methyl ether (4), isolated from Zanthoxylum wutaiense, were found to be unprecedented 8,9'-neolignans containing an (S)-2-(1,1-dimethyl-1-hydroxymethyl)-7-methoxydihydrobenzofuran skeleton. Wutaienin (3) was present in the plant as an inseparable 1:1 mixture of the (7,8)-syn-diastereoisomers. The diastereoisomeric mixture was characterized by comparison with four possible diastereoisomers, which were enantioselectively synthesized from (S)-5-bromo-(1,1-dimethyl-1… CONTINUE READING
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