(3aR,4S,6R,6aS)-6-(N-Boc-amino)-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-4H-cyclopent[d]isoxazole-4-carboxylic Acid Methyl Ester??is an impurity of Peramivir (P285500),??a neuraminidase inhibitor used as??an??antiviral agent for treating influenza.(3aR,4S,6R,6aS)-6-(N-Boc-amino)-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-4H-cyclopent[d]isoxazole-4-carboxylic Acid Methyl Ester??is also a regioisomer of??(3aR,4R,6S,6aS)-4-[[(1,1-Dimethylethoxy)carbonyl]amino]-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-4H-cyclopent[d]isoxazole-6-carboxylic Acid Methyl Ester??(D472890).
