英文别名(1R,5S,6S)-rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Methyl Ester; Methyl (1S,5R,6S)-5-(3-pentanyloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate; 7-Oxabicyclo[4.1.0]hept-3-ene-3-carboxylic acid, 5-(1-ethylpropoxy)-, methyl ester, (1R,5S,6R)-rel-; (1RS,5SR,6SR)-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic acid methyl ester; Oseltamivir Impurity 31 
