2-Hydr­oxy-10-propargylpyrrolo[2,1-c][1,4]benzodiazepine-5,11-dione monohydrate

The title compound, C15H14N2O3·H2O, consists of a benzodiazepinedione system fused to a pyrrole system. The seven-membered ring adopts a boat-shaped conformation (with the methine C atom as the prow); the five-membered ring adopts an enveloped-shaped conformation (with the hydr­oxy-bearing C atom as the flap). In the crystal, adjacent mol­ecules are linked by O—H⋯O hydrogen bonds into sheets parallel to (102). In addition, Cacetyl­inic—H⋯O hydrogen bonds occur

2-Hydr­oxy-10-phenacyl­pyrrolo[2,1-c][1,4]benzodiazepine-5,11-dione

The title compound, C20H18N2O4, consists of a benzodiazepinedione system fused to a pyrrole system. The seven-membered ring adopts a boat-shaped conformation (with the methine C atom as the prow); the five-membered ring adopts an enveloped-shaped conformation (with the hydr­oxy-bearing C atom as the flap). In the crystal, the hydr­oxy group is hydrogen bonded to the carbonyl O atom of an adjacent mol­ecule, generating a zigzag chain

Ethyl 2-hydroxy-5,11-dioxopyrrolo[2,1-c][1,4]benzodiazepine-10-acetate

The title compound, C16H18N2O5, consists of a benzodiazepinedione system fused to a pyrrole system. The seven-membered ring adopts a boat-shaped conformation (with the methine C atom as the prow); the five-membered ring adopts an enveloped-shaped conformation (with the hydroxy-bearing C atom as the flap). The hydroxy group is hydrogen bonded to the carbonyl O atom of an adjacent molecule generating a zigzag chain in the crystal structure