Anyone please search this article.
link
http://onlinelibrary.wiley.com/doi/10.1002/jhet.5570260209/pdf
DOI: 10.1002/jhet.5570260209
Azolopyrimidines and pyrimidoquinazolines from 4-chloropyrimidines
A. M. El-Reedy1,
A. O. Ayyad1,
A. S. Ali2
Article first published online: 11 MAR 2009
DOI: 10.1002/jhet.5570260209
Journal of Heterocyclic Chemistry
Volume 26, Issue 2, pages 313–316, March/April 1989