| Summary: | In the title compound, C29H18ClN5·C2H6O, the dihydropyridine ring adopts a strongly flattened envelope conformation, with a maximum deviation of 0.139 (2) Å from its best plane for the Csp3 atom. The dihedral angles between the dihydropyridine ring plane and the two indole rings in positions 2 and 6 are 34.28 (5) and 40.50 (6)°, respectively. In turn, the benzene ring and the dihydropyridine ring are oriented at a dihedral angle of 74.69 (6)°. An intramolecular C—H...Cl hydrogen bond occurs. In the crystal, molecules are linked by N—H...N, N—H...O and O—H...N hydrogen bonds into layers parallel to (001). There are short C—H...Cl contacts between molecules in neighboring layers.
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