1′-(1,3-Diphenyl-1H-pyrazol-4-yl)-1′′-(prop-2-en-1-yl)-2′,3′,5′,6′,7′,7a’-hexa­hydro-1′H-di­spiro­[1-benzo­pyran-3,2′-pyrrolizine-3′,3′′-indoline]-2′′,4-dione 0.75-hydrate

In the central aza-bi­cyclo­octane unit of the title compound, C(40)H(34)N(4)O(3)·0.75H(2)O, the peripheral pyrrolidine ring adopts an envelope conformation with the N atom deviating by 0.209 (2) Å, whereas the other pyrrolidine ring adopts a twisted conformation with the bridging N and C atoms deviating by −0.218 (2) and 0.236 (3) Å, respectively, from the rest of the ring. The pyrazole ring forms dihedral angles of 42.36 (7) and 24.07 (8)° with its C- and N-attached phenyl groups, respectively. The solvent water mol­ecule has a partial occupancy of 0.75. In the crystal, the water mol­ecules link the fused-ring mol­ecules into chains along the b axis via O—H⋯N and O—H⋯O hydrogen bonds. The crystal packing is further stabilized by C—H⋯π inter­actions involving a methyl­ene group of the pyran ring and the C-attached benzene ring on the pyrazole ring.