[EN] CEPHALOSPORIN INTERMEDIATE AND PROCESS FOR ITS PREPARATION<br/>[FR] PRODUIT INTERMÉDIAIRE DE CÉPHALOSPORINE ET SON PROCÉDÉ DE PRÉPARATION
申请人:FRESENIUS KABI ANTI-INFECTIVES SRL
公开号:WO2016128580A1
公开(公告)日:2016-08-18
Provided is a synthesis of cephalosporin derivatives, characterized by the use of the new intermediates for the preparation of cephalosporin derivatives, a crystalline toluene hemi-solvate of benzhydryl (6R,7R)-7β-[(phenylacetyl)amino]-3-[4-pyridyl-2-thiazolylthio]-3-cephem-4-carboxylate, and a crystalline 4-[2-[[(6R,7R)-7-amino-2 carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]-thio]-4-thiazolyl]-1-methyl-pyridinium chloride, hydrochloride (1:1:1), obtained by a specific process and processes for preparation thereof.
提供了头孢菌素衍生物的合成,其特点是利用新中间体制备头孢菌素衍生物,一种结晶甲苯半溶剂的苄基(6R,7R)-7β-[(苯乙酰)氨基]-3-[4-吡啶基-2-噻唑基硫基]-3-头孢烯-4-羧酸酯,以及一种结晶4-[2-[[(6R,7R)-7-氨基-2-羧基-8-氧代-5-硫代-1-氮杂双环[4.2.0]辛-2-烯-3-基]-硫基]-4-噻唑基]-1-甲基吡啶盐酸盐,通过特定工艺获得,并制备的工艺。