Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): Mohammed Iqbal A. Khazi, Nikhath Fathima, Ningaraddi S. Belavagi, Noor Shahina Begum, I. M. Khazi.
In the title compound, C7H7ClN4O, the pyrazolopyrimidine ring is essentially planar, the r.m.s. deviation of the fitted atoms being 0.0071 Å. The crystal structure features strong N—H⋯O hydrogen bonds and further consolidated by weak C—H⋯O, C—H⋯N and C—H⋯Cl interactions.
For the biological activity of pyrazolopyrimidines, see: Carraro et al. (2006 ▶). For a related structure, see: Dolzhenko et al. (2009 ▶). For the graph-set analysis of hydrogen bonding, see: Bernstein et al. (1995 ▶).