In the mol-ecule of the title compound, C(21)H(18)N(4)O(3), the fused pyrrolo-[3,4-c]pyrazole ring system is approximately planar [maximum deviation = 0.0486 (16) Å] and forms dihedral angles of 87.21 (8) and 35.46 (7)° with the phenyl rings. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds and weak C-H⋯π inter-actions link the mol-ecules into chains parallel to [201].
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3379273 | PMC |
http://dx.doi.org/10.1107/S1600536812019708 | DOI Listing |
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