Article from Heteroatom Chemistry_Wiley

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Title: An expedient synthesis of novel, fused pyrimido[4,5-d]pyrimidine and pyrimido [5,4-e] [1,2,4]triazolo[4,3-c]pyrimidine analogues from 4-amino-2,6-dichloro-pyrimidine (pages 245–253)
Authors: Pratibha Sharma, Ashok Kumar and Nilesh Rane
Journal: Heteroatom Chemistry, vol: 17, issue 4, pages 245-253; year 2006

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http://onlinelibrary.wiley.com/doi/10.1002/hc.20177/pdf

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