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| | Trazzi, Giordano, André, Marcelo Fabiano and Coelho, Fernando Diastereoselective synthesis of β-piperonyl-γ-butyrolactones from morita-baylis-hillman adducts. highly efficient synthesis of (±)-yatein, (±)-podorhizol and (±)-epi-podorhizol. J. Braz. Chem. Soc., Dec 2010, vol.21, no.12, p.2327-2339. ISSN 0103-5053
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