Gültekin Zeynep, Frey Wolfgang, Tercan Barış, Hökelek Tuncer
Acta Crystallogr Sect E Struct Rep Online. 2011 Feb 19;67(Pt 3):o672-3. doi: 10.1107/S1600536811005605.
In the crystal of the title compound, C(14)H(15)NO(4), pairs of inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric R(2) (2)(10) dimers. These dimers are further connected via inter-molecular C-H⋯O hydrogen bonds, forming a three-dimensional network. The heterocyclic ring adopts a twisted conformation.