Synthesis and Analgesic and Anti-inflammatory Activity of Some New (6-Acyl-2-benzoxazolinone and 6-Acyl-2-benzothiazolinone Derivatives with Acetic Acid and Propanoic Acid Residues
In this study for developing potent analgesic and anti‐inflammatory compounds, we synthesized 6‐acyl‐2‐benzoxazolinone and 6‐acyl‐2‐benzothiazolinone derivatives with aceticacid and propanoic acid side chain, and performed preliminary screening of their in vivo analgesic and anti‐inflammatory activities at a single dose of 100 mg/kg inmice by a p‐benzoquinone‐induced writhing test and a Carrageenaninduced
Vibrational spectroscopy investigation using ab initio and density functional theory analysis on the structure of 3-(6-benzoyl-2-oxobenzo[d]oxazol-3(2H)-yl)propanoic acid
作者:Hakan Arslan、Öztekin Algül、Tijen Önkol
DOI:10.1016/j.saa.2007.08.008
日期:2008.8
The molecular structure, vibrational frequencies and infrared intensities of the 3-(6-benzoyl-2-oxobenzo[d]oxazol-3(2H)-yl)propanoic acid were calculated by the HF and DFr methods using 6-31G(d) basis set. The FT-infrared spectra have been measured for the title compound in the solid state. We obtained 11 stable conformers for the title compound, however the Conformer 1 is approximately 3.88 kcal/mol more stable than the Conformer 11. The comparison of the theoretical and experimental geometry of the title compound shows that the X-ray parameters fairly well reproduce the geometry of the Conformer 1. The harmonic vibrations computed of this compound by the B3LYP/6-31G(d) method are in a good agreement with the observed IR spectral data. Theoretical vibrational spectra of the title compound were interpreted by means of PEDs using VEDA 4 program. (C) 2007 Elsevier B.V. All rights reserved.