Diethyl 2,6-dimethyl-4-[4-(3-phenyl­acrylo­yloxy)phen­yl]-1,4-dihydro­pyridine-3,5-dicarboxyl­ate hemihydrate

In the title ester derivative, C₂₈H₂₉NO₆·0.5H₂O, the 1,4-dihydro­pyridine ring has a flattened boat conformation. The mean plane is almost perpendicular to the attached benzene ring, making a dihedral angle of 86.87 (9)°. The terminal phenyl ring is inclined to the central benzene ring by 67.56 (12)°. In the crystal, mol­ecules are bridged via O—H...O hydrogen bonds involving the partially occupied water mol­ecule, and this arrangement is strengthened by a pair of N—H...O hydrogen bonds and C—H...O inter­actions. The ethyl atoms of one of the ethyl ester groups are disordered over two sites with an occupancy ratio of 0.716 (5):0.284 (5).