英文别名Peramivir Impurity 3; Peramivir Impurity; methyl (3aS,4S,6R,6aR)-6-((tert-butoxycarbonyl)amino)-3-(pentan-3-yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[d]isoxazole-4-carboxylate; 4H-Cyclopent[d]isoxazole-4-carboxylic acid, 6-[[(1,1-dimethylethoxy)carbonyl]amino]-3-(1-ethylpropyl)-3a,5,6,6a-tetrahydro-, methyl ester, (3aS,4S,6R,6aR)-