英文别名(3aR,7R,7aR)-2,2-Diethyl-3a,6,7,7a-tetrahydro-7-[(methylsulfonyl)oxy]-1,3-benzodioxole-5-carboxylic Acid Ethyl Ester; 1,3-Benzodioxole-5-carboxylic acid, 2,2-diethyl-3a,6,7,7a-tetrahydro-7-[(methylsulfonyl)oxy]-, ethyl ester, (3aR,7R,7aR)-; Oseltamivir Impurity 88; Oseltamivir Impurity 58 (Oseltamivir Impurity); Ethyl (3aR,7R,7aR)-2,2-diethyl-7-[(methylsulfonyl)oxy]-3a,6,7,7a-tetrahydro-1,3-benzodioxole-5-carboxylate