英文别名ethyl (1R,4S,6S)-7-oxabicyclo[4.1.0]heptane-4-carboxylate; 7-Oxabicyclo[4.1.0]heptane-3-carboxylic acid,ethyl ester,(1S,3S,6R); 7-Oxabicyclo[4.1.0]heptane-3-carboxylic acid, ethyl ester, (1S,3S,6R)-; (1S,3S,6R)-7-Oxabicyclo[4.1.0]heptane-3-carboxylic acid ethyl ester; Edoxaban Impurity 118 
