Crystal structure of 11-(2,3-dimethoxy-phenyl)-14-methyl-12-oxa-8,14-diaza-tetracyclo[,10.02,7]hexadeca-2(7),3,5-triene-9,13-dione

M. P. Savithri, M. Suresh, R. Raghunathan, R. Raja, A. SubbiahPandi*, W. T A Harrison (Editor)

*Corresponding author for this work

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The title compound, C22H22N2O5, contains two conformation-ally similar molecules (A and B) in its the asymmetric unit (r.m.s. overlay fit for the 29 non-H atoms = 0.194 Å). In each molecule, the lactone ring has an envelope conformation with the spiro C atom as the flap. In the crystal, A+A and B+B inversion dimers linked by pairs of N - H⋯O hydrgen bonds occur; in both cases, R22(8) loops are generated. A weak C - H⋯O interaction is also observed, which links the dimers into [010] chains.

Original languageEnglish
Pages (from-to)o293-o294
Number of pages2
JournalActa Crystallographica Section E: Structure Reports Online
Issue number5
Early online date9 Apr 2015
Publication statusPublished - 1 May 2015


  • Crystal structure
  • Diazatetracyclhexadecatrienedione
  • N - H⋯O hydrgen bonds


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