(4R*,4aR*,7aS*)-5-Oxo-6-phenyl-4a,5,6,7,7a,8-hexa­hydro-4H-furo[2,3-f]isoindole-4-carb­oxy­lic acid

The asymmetric unit of the title compound, C₁₇H₁₅NO₄, contains two independent mol­ecules with similar geometric parameters. In both mol­ecules, the conformation of the cyclo­hexene ring is half-chair, while the pyrrolidinone ring adopts an envelope conformation with the γ-carbon atom of the α-pyrrolidinone ring as the flap. In the crystal, O—H...O hydrogen bonds between the carb­oxylic and carbonyl groups link alternate independent mol­ecules into chains propagating in the b-axis direction. The crystal packing also features weak C—H...π inter­actions.

5-Iodo-3-phenyl-2,1-benzoxazole

The title compound, C₁₃H₈INO, was prepared by a condensation reaction of 4-nitro­benzene with phenyl­acetonitrile in NaOH–ethanol solution. There are two independent mol­ecules in the asymmetric unit, in which the dihedral angles between the benzene ring and the benzoisoxazole unit are 4.2 (3) and 4.1 (3)°. The crystal packing is governed by C—H...N, C—I...π and C—I...O inter­actions.