5-(4-Chlorophenyl)-7-(4-methylphenyl)4-(pyrrolidin-1-yl)-7H-pyrrolo[2,3-d]pyrimidine

The title compound, C23H21ClN4, contains two molecules (A and B) in the asymmetric unit, which are related to one another by a pseudo-inversion center. The non-aromatic pyrrolidine ring in each independent molecule adopts a halfchair conformation; the ring puckering parameters are theta = 0.407 (3) angstrom and phi = 270.5 (4)degrees, and the pseudo-rotation parameters are rho = 72.5 (3)degrees and tau = 42.2 (2)degrees for an N-C bond of molecule A, and the corresponding values are 0.415 (3) angstrom, 271.6 (4)degrees, 73.6 (3)degrees and 42.6 (2)degrees for molecule B. The dihedral angles between the central fused-ring system and the substituted chlorophenyl and methylphenyl rings are 66.35 and 45.59 degrees, respectively, for molecule A, and 64.51 and 41.89 degrees for molecule B. The geometry of all four intramolecular C-H center dot center dot center dot pi interactions are of type III. pi-pi interactions involving the centroids of symmetry-related pyrrole rings of molecule B are 4.390 angstrom, contributing further to the stability of the molecule.