[EN] AN IMPROVED MANUFACTURING METHOD OF ZABOFLOXACIN<br/>[FR] PROCÉDÉ AMÉLIORÉ DE PRÉPARATION DE ZABOFLOXACINE
申请人:DONG WHA PHARM CO LTD
公开号:WO2015178663A1
公开(公告)日:2015-11-26
The present invention provides an improved method of manufacturing Zabofloxacin D-aspartate. The present invention provides a novel method of manufacturing 8-methoxyimino-2,6-diaza-spiro[3,4]octane-2-carboxylic acid t-butyl ester succinate (TBDCS) or 2-(2,2,2-trifluoro-acetyl)-2,6-diaza-spiro[3,4]octan-8-one O-methyloxime methanesulfonate (TDMOS), which are separately the starting materials for manufacturing Zabofloxacin D-aspartate. The manufacturing method according to the present invention is suitable for mass production of Zabofloxacin D-aspartate for it enables manufacturing in high yield and high quality (HPLC purity ≥ 99.5%) as well as reducing the unit cost of production by using only 1.0~1.1 equivalents of TBDCS or TDMOS in a substitution reaction.
本发明提供了一种改进的制备左氨糖基左氨基脲酸扎博氟沙星的方法。本发明提供了一种制备8-甲氧基亚胺-2,6-二氮杂螺[3,4]辛-2-羧酸叔丁酯琥珀酸盐(TBDCS)或2-(2,2,2-三氟乙酰)-2,6-二氮杂螺[3,4]辛-8-酮O-甲氧基肟甲磺酸盐(TDMOS)的新方法,它们分别是制备左氨糖基左氨基脲酸扎博氟沙星的起始原料。根据本发明的制备方法适用于大规模生产左氨糖基左氨基脲酸扎博氟沙星,因为它能够以高产率和高质量(HPLC纯度≥99.5%)进行制备,同时通过在取代反应中仅使用1.0~1.1当量的TBDCS或TDMOS来降低生产成本。