Submitted on: 13 March 2004.
Revised on: 10 April 2004.
Accepted on: 04 June 2004.
___________________JOURNAL OF NATURAL PRODUCTS---AMER CHEMICAL SOC
Submitted on: 30 December 2018.
Revised on: 07 March 2019.
Accepted on: 24 April 2019.
___________________JOURNAL OF NATURAL PRODUCTS---AMER CHEMICAL SOC
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Submitted on: 24 February 2004.
Revised on: 20 April 2004.
Accepted on: 18 June 2004.
___________________JOURNAL OF NATURAL PRODUCTS---AMER CHEMICAL SOC
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Submitted on: 15 October 2009.
Revised on: 22 November 2009.
Accepted on: 02 December 2009.
___________________JOURNAL OF NATURAL PRODUCTS---AMER CHEMICAL SOC