(8RS)‐4‐Amino‐6‐(4‐chlorophenyl)‐8‐(2, 4‐dichlorothiazol‐5‐yl)‐8, 9‐dihydro‐7H‐pyrimido[4, 5‐b][1, 4]diazepine N, N‐dimethylformamide monosolvate: sheets built from N—H...N and C—H...O hydrogen bonds. Issue 6 (6th May 2014)