(E)-Ethyl 2-anilino-5-[3-(dimethyl­amino)­acrylo­yl]-4-phenyl­thio­phene-3-carboxyl­ate

In the title compound, C₂₄H₂₄N₂O₃S, the phenyl rings form dihedral angles of 55.65 (11) and 79.60 (11)° with the plane of the thio­phene ring. The mol­ecular conformation is stabilized by an intra­molecular N—H...O hydrogen bond, generating an S(6) ring motif. In the crystal, centrosymmetrically related mol­ecules are linked into dimers by two pairs of C—H...O inter­actions.

Ethyl 4-acetyl-5-anilino-3-methyl­thio­phene-2-carboxyl­ate

In the title compound, C₁₆H₁₇NO₃S, a thio­phene derivative with amino phenyl, acetyl, methyl and ethyl carboxyl susbtituents attached to a central thio­phene ring, the phenyl and thio­phene rings form a dihedral angle of 36.92 (9) Å. The mol­ecular conformation is stabilized by an intra­molecular N—H...O hydrogen bond, which forms an S(6) ring motif.