Submitted on: 07 February 2009.
Revised on: 20 February 2009.
Accepted on: 15 March 2009.
Natural Products Journal---BENTHAM SCIENCE PUBL
Submitted on: 15 February 2001.
Revised on: 23 February 2001.
Accepted on: 18 March 2001.
Natural Products Journal---BENTHAM SCIENCE PUBL
http://reply.papertrans.cn/3/227/22681/22681-23.png
Submitted on: 24 September 2002.
Revised on: 15 October 2002.
Accepted on: 09 November 2002.
Natural Products Journal---BENTHAM SCIENCE PUBL
http://reply.papertrans.cn/3/227/22681/22681-25.png
Submitted on: 29 August 1999.
Revised on: 25 September 1999.
Accepted on: 19 October 1999.
Natural Products Journal
Submitted on: 17 September 2014.
Revised on: 12 October 2014.
Accepted on: 19 October 2014.
Natural Products Journal---BENTHAM SCIENCE PUBL
http://reply.papertrans.cn/3/227/22681/22681-28.png
Submitted on: 29 November 2012.
Revised on: 21 December 2012.
Accepted on: 09 January 2013.
Natural Products Journal---BENTHAM SCIENCE PUBL
Submitted on: 26 August 2011.
Revised on: 06 October 2011.
Accepted on: 14 October 2011.
Natural Products Journal---BENTHAM SCIENCE PUBL