Acta Cryst. (2009). E65, o2318  [ doi:10.1107/S1600536809033911 ]

7-Chloro-5-(2-ethoxyphenyl)-1-methyl-3-propyl-2,6-dihydro-1H-pyrazolo[4,3-d]pyrimidine

M.-Q. Zhou, K. Zhu, X.-P. Lv, P.-F. Han and P. Wei

Abstract: In the title compound, C₁₇H₂₁ClN₄O, the benzene ring is oriented at dihedral angles of 1.59 (3) and 1.27 (3)° with respect to the pyrimidine and pyrazole rings, while the dihedral angle between the pyrimidine and pyrazole rings is 0.83 (3)°. An intramolecular N-HO hydrogen bond results in the formation of a planar (r.m.s. deviation 0.004 Å) six-membered ring.

Online 5 September 2009

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