依度沙班杂质44;

(1S,3S,4S)-3-AMino-4-hydroxy-cyclohexanecarboxylic acid ethyl ester; ethyl (1S,3S,4S)-4-{[(tert-butoxy)carbonyl]amino}-3-hydroxycyclohexane-1-carboxylate; (1S,3S,4S)-Ethyl 4-((tert-butoxycarbonyl)amino)-3-hydroxycyclohexanecarboxylate; Edoxaban Impurity 44;