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In the title compound, C21H23NO6S, the dihedral angle between the thio­pene and benzene rings is 88.66 (6)°. In the crystal, mol­ecules are connected by C—H...N and C—H...O hydrogen bonds, forming a tape along [10-1]. In addition, C—H...π and π–π stacking [centroid–centroid distance = 3.879 (2) Å between the thio­phene rings] inter­actions are observed.

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In the title compound, C13H7Cl3O2, the dihedral angle between the benzene rings is 82.1 (2)°. The dihedral angle between the CO2 group and its carbon-bonded ring is 14.50 (19)° In the crystal, aromatic π–π stacking inter­actions [minimum ring centroid separation = 3.604 (2) Å] occur.
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