3-{[3-(4-Meth­oxy­phen­yl)-4,5-dihydro-1,2-oxazol-5-yl]meth­yl}-1,5-dimethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-dione

The mol­ecule of the title compound, C22H23N3O4, features a benzodiazepine fused-ring system whose seven-membered ring adopts a boat-shaped conformation (with the C atoms of the fused-ring as the stern and the methine C atom as the prow). The methyl­ene C atom connected to the methine C atom occupies an equatorial position. The methyl­ene C atom is connected to the five-membered oxazole ring, both of which are disordered over two positions in a 0.634 (4):0.366 (4) ratio. Weak inter­molecular C—H⋯O hydrogen bonding is present in the crystal structure

3-Hexadecyl-1,5-dimethyl-1H-1,5-benzo­diazepine-2,4(3H,5H)-dione

In the title mol­ecule, C27H44N2O2, the seven-membered ring adopts a boat-shaped conformation, with two C atoms of the fused benzene ring forming the stern and the methine C atom forming the prow. The hexa­decyl substituent occupies an equatorial position, with the aliphatic chain exhibibiting an extended zigzag conformation

3-Benzoyl-1,5-dimethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-dione

The seven-membered ring of the title compound, C18H16N2O3, adopts a boat-shaped conformation (with the C atoms of the fused ring as the stern and the methine C atom as the prow). The substituent at the 3-position occupies an axial position, and the aromatic ring of the substituent is arched over the seven-membered ring in a parasol-like manner, the dihedral angle between the phenyl­ene and phenyl rings being 28.7 (1)°

3-{[3-(4-Chloro­phen­yl)-4,5-dihydro-1,2-oxazol-5-yl]meth­yl}-1,5-dimethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-dione

The seven-membered ring of the title mol­ecule, C21H20ClN3O3, adopts a boat-shaped conformation (with the C atoms of the fused-ring as the stern and the methine C atom as the prow). The substituent at the 3-position occupies an equatorial position; its five-membered ring is approximately planar (r.m.s. deviation = 0.081 Å), and is aligned at 14.5 (1)° with respect to the chloro­phenyl ring to which it is connected

Ethyl {4-[(1,5-dimethyl-2,4-dioxo-2,3,4,5-tetra­hydro-1H-1,5-benzo­diazepin-3-yl)meth­yl]-1,2,3-triazol-1-yl}acetate

In the title compound, C18H21N5O4, the diazepine ring adopts a boat conformation with the triazolylmethyl-bearing C atom as the prow and the C atoms at the ring junction as the stern

1,5-Dimethyl-3-[(3-phenyl-4,5-dihydro-1,2-oxazol-5-yl)meth­yl]-1H-1,5-benzodiazepine-2,4(3H,5H)-dione

The reaction of 3-allyl-1,5-dimethyl-1,5-benzodiazepine-2,4-dione and benzaldoxime leads to the title compound, C21H21N3O3. The mol­ecular structure is built up from two fused six- and seven-membered rings linked to a chain including a five- and six-membered ring (isoxazoline and phen­yl) via a methyl­ene group. The seven-membered ring displays a boat conformation. The dihedral angle between the two six-membered rings is 74.3 (1)°