Where R is C 1-8 alkyl straight chain or branched like methyl, ethyl, propyl, isopropyl, butyl, isobutyl, aryl alkyl, substituted or unsubstituted phenyl; in an amount less than or equal to 0.1 area % as determined by HPLC. The present invention is directed to processes for the preparation of 5-chloro-N-( (5S)-2-oxo-3-[ 4-(3-oxo-4-morpholinyl) phenyl]-l,3-oxazolidin-5-yl methyl)-2-thi6phene-carboxamide. In one embodiment of the present invention, there is provided a process for the preparation of 5-chloro-N-( (5S)-2-oxo-3-[ 4-(3-oxo-4-morpholinyl) phenyl]-I, 3-oxazolidin-5-yl) methyl)-2-thiophene-carboxamide of formula (I).
其中R为C1-8烷基直链或支链,例如甲基、乙基、丙基、异丙基、丁基、异丁基、芳基烷基、取代或未取代苯基等,其含量小于或等于0.1个面积%(经HPLC测定)。本发明涉及制备5-
氯-N-((5S)-2-氧代-3-[4-(3-氧代-4-吗啉基)苯基]-1,3-
噁唑烷-5-基甲基}-2-
噻吩羧酰胺)的方法。在本发明的一种实施方案中,提供了一种制备式(I)的5-
氯-N-((5S)-2-氧代-3-[4-(3-氧代-4-吗啉基)苯基]-1,3-
噁唑烷-5-基甲基}-2-
噻吩羧酰胺)的方法。