| pubmed-article:21837016 | pubmed:abstractText | In the crystal structure of the title mol-ecule, C(26)H(32)N(2)O(2), the six methyl groups are disordered over two positions, with site-occupancy ratios of 0.665?(8):0.335?(8) and 0.639?(8):0.361?(8). The central pyrimidine ring is almost planar with an r.m.s. deviation of 0.009?Å. The dihedral angles formed by the two benzene rings with the pyrimidine ring are 70.70?(8) and 88.02?(9)°. The dihedral angle between two benzene rings is 46.67?(10)°. | lld:pubmed |
