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Submitted on: 11 May 2009.
Revised on: 02 September 2009.
Accepted on: 25 October 2009.
___________________BIOORGANIC & MEDICINAL CHEMISTRY
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Submitted on: 26 December 2003.
Revised on: 13 March 2004.
Accepted on: 30 March 2004.
___________________BIOORGANIC & MEDICINAL CHEMISTRY
Submitted on: 14 December 2000.
Revised on: 07 January 2001.
Accepted on: 22 January 2001.
___________________BIOORGANIC & MEDICINAL CHEMISTRY
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