(3S,4S)-4-Phenyl-1,5-bis(prop-2-en-1-yl)-3-(prop-2-en-1-yloxy)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-one

In the title compound, C24H26N2O2, the dihedral angle between the benzene rings is 45.69 (7)°. In the crystal, the molecules form helical supramolecular chains running parallel to the b axis via weak C—H...O hydrogen bonds