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Acknowledgments
We thank Johan Eriksson for valuable discussions on how to
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Athanasiadis for running the MS. This work was funded by the
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Received February 7, 2003
2576
2003 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Eur. J. Org. Chem. 2003, 2566Ϫ2576