http://reply.papertrans.cn/2/124/12372/12372-21.png
http://reply.papertrans.cn/2/124/12372/12372-22.png
http://reply.papertrans.cn/2/124/12372/12372-23.png
Submitted on: 25 March 2000.
Revised on: 23 April 2000.
Accepted on: 07 May 2000.
___________________INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY
Submitted on: 02 June 2006.
Revised on: 10 August 2006.
Accepted on: 30 September 2006.
___________________INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY
http://reply.papertrans.cn/2/124/12372/12372-26.png
Submitted on: 09 November 2006.
Revised on: 18 January 2007.
Accepted on: 08 February 2007.
___________________INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY
http://reply.papertrans.cn/2/124/12372/12372-28.png
http://reply.papertrans.cn/2/124/12372/12372-29.png
Submitted on: 18 March 2017.
Revised on: 10 June 2017.
Accepted on: 26 July 2017.
___________________INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY