Decarbonyl Rivaroxaban

5-Chloro-N-[(2R)-2-hydroxy-3-[[4-(3-oxo-4-morpholinyl)phenyl]amino]propyl]-2-thiophenecarboxamide; 2-Thiophenecarboxamide, 5-chloro-N-[(2R)-2-hydroxy-3-[[4-(3-oxo-4-morpholinyl)phenyl]amino]propyl]; Rivaroxaban Amide Impurity;