Potent anti-inflammatory activity of 3-aminovinylphosphonates as inhibitors of reactive oxygen intermediates, nitric oxides generation, and tumor necrosis factor-alpha release

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Two 3-aminoalkenylphosphonate compounds 1, 2, and a hydroxyl derivative, 2-(3-hydroxy-3-phenylpropyl)hex-1-enylphosphonate 3, recently synthesized in our lab, have been evaluated for their ability to modulate the production of reactive oxygen intermediates, nitric oxide (NO) and tumor necrosis factor (TNF-α) by murine macrophages. We found that all three molecules suppressed generation of reactive oxygen intermediates, NO, and TNF-α. However, although 2-(3-hydroxy-3-phenylpropyl)hex-1-enylphosphonate 3 possessed higher activity in suppression of reactive oxygen intermediates and nitric oxide compared to 3-aminoalkenylphosphonates 1 and 2, it showed less activity in the inhibition of tumor necrosis factor release.

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