N-[2-(6-Methyl-4-oxo-4H-chromen-3-yl)-4-oxothia­zolidin-3-yl]furan-2-carbox­amide N,N-dimethyl­formamide solvate

The title mol­ecule, C(18)H(14)N(2)O(5)S·C(3)H(7)NO, comprises of a carboxamide group bonded to a furan ring and a distorted envelope-shaped 4-oxothia­zolidin-3-yl group which is connected to a substituted 6-methyl-4-oxo-4H-chromen-3-yl group. Extensive strong N—H⋯O and weak C—H⋯O inter­molecular hydrogen-bonding inter­actions occur between dimethyl­formamide (DMF), the crystallizing solvent, and the various heterocyclic groups within the compound, as well as additional weak C—H⋯O inter­actions between the heterocyclic groups themselves. The carboxyl group of the DMF solvent mol­ecule forms a trifurcated (four-center) acceptor hydrogen-bond inter­action with the carboxamide, furan and 6-methyl-4-oxo-4H-chromen-3-yl groups. The dihedral angles between the planar chromone group [maximum deviation = 0.0377 (18)°] and those of the furan and 4-oxothia­zolidin-3-yl groups are 89.4 (6) and 78.5 (1)°, respectively.