Benzyl N-((S)-2-hydr­oxy-1-{N'-[(E)-2-methoxy­benzyl­idene]hydrazinecarbon­yl}eth­yl)carbamate from synchrotron data

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Abstract

A U-shaped conformation is found in the title compound, C₁₉H₂₁N₃O₅, with the benzene rings lying to the same side of the mol­ecule; the dihedral angle between them is 10.83 (16)°. The dihedral angle formed between the hydrazinecarbonyl and carbamate residues is 68.42 (13)°. The carbonyl groups lie approximately at right angles to each other [O-CC-O pseudo torsion angle of 107.7 (3)°], and the conformation about the C12=N3 bond [1.279 (4) Å] is E. An intra­molecular N_cb-HO_hy (cb = carbmate and hy = hydr­oxy) hydrogen bond occurs, generating an S(6) loop. In the crystal, inter­molecular O_h-HO_ca (ca = carbon­yl) and N_hz-HO_ca (hz = hydrazine) hydrogen bonds lead to the formation of a supra­molecular chain, two mol­ecules thick, which propagates along the a axis; these are connected by C-HO_ca contacts.

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Keywords: none Document Type: Research Article DOI: http://dx.doi.org/10.1107/S1600536810011463 Publication date: 1 de Janeiro de 2010