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1.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 5): o775, 2013 May 01.
Article in English | MEDLINE | ID: mdl-23723919

ABSTRACT

The title compound, C11H10BrNO3, is close to planar with the benzo-furan unit and the ester group subtending a dihedral angle of 5.25 (2)°. The mol-ecular structure features an intra-molecular N-H⋯O inter-action. In the crystal, N-H⋯O hydrogen bonds involving carboxyl O-atom acceptors generate a chain extending along [201].

2.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 3): o342, 2013 Mar 01.
Article in English | MEDLINE | ID: mdl-23476536

ABSTRACT

In the title compound, C14H14BrNO5, the ester group is disordered [occupancy ratio 0.52 (2):0.48 (2)]. The major component is nearly coplanar with the benzofuran plane, subtending a dihedral angle of 7.84 (2)°, while the amide group is twisted out of the benzofuran plane making a dihedral angle of 39.69 (2)°. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, pairs of weak C-H⋯O hydrogen bonds link the mol-ecules into inversion dimers, which are further linked via strong N-H⋯O hydrogen bonds, generating a zigzag chain extending along [100].

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