Submitted on: 04 December 2000.
Revised on: 10 January 2001.
Accepted on: 19 January 2001.
ORGANIC LETTERS
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Submitted on: 15 May 2002.
Revised on: 26 June 2002.
Accepted on: 20 July 2002.
ORGANIC LETTERS---AMER CHEMICAL SOC
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Submitted on: 29 July 2013.
Revised on: 27 August 2013.
Accepted on: 18 September 2013.
ORGANIC LETTERS