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Submitted on: 17 December 2006.
Revised on: 10 February 2007.
Accepted on: 29 March 2007.
___________________EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
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Submitted on: 29 September 1998.
Revised on: 13 November 1998.
Accepted on: 07 December 1998.
___________________EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
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Submitted on: 18 October 1999.
Revised on: 22 November 1999.
Accepted on: 13 January 2000.
___________________EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
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