Total Synthesis and Analgesic Activity of 6-Fluoroindan-1-acetic Acid and its 3-Oxo Derivative
2009
6-Fluoro-3-oxo-indan-1-acetic acid (5) and 6-fluoroindan-1-acetic acid (6) were conveniently synthesised from 3-fluorobenzaldehyde in four and five steps, respectively. The structures of these new compounds and two other intermediates, 3-fluorobenzylidine-bis-acetoacetate (2) and 3-fluoro-β-phenyl glutaric acid (3) were elucidated by spectroscopic means, notably, HRMS, 1D and 2D NMR. The analgesic activity of compounds 5 and 6 were assessed by the acetic acid induced writhing in Swiss albino mice.
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