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    • 10. 发明公开
    • 새로운 효소를 이용한 세팔로스포린계 항생제 중간체의 제조방법
    • 使用新的酶制备中枢神经磷脂酰胆碱的方法
    • KR1020120078687A
    • 2012-07-10
    • KR1020120056983
    • 2012-05-29
    • 한국과학기술연구원
    • 오창현조정혁
    • C12P35/00A61K31/545
    • C12P35/06A61K31/545C07B2200/13C07D501/16C12N9/84C12Y305/01011
    • PURPOSE: A method for preparing a cephalosporin-based antibiotic intermediate is provided to industrially synthesize crystalline hydrate of the intermediate and to develop the antibiotics. CONSTITUTION: A method for preparing a cephalosporin-based antibiotic intermediate of chemical formula 1 comprises: a step of adding cresol and phenol to a compound of chemical formula 2 and stirring for deprotecting protection groups of a carboxyl group; a step of adding syntha CLEC-PA(cross-linked enzyme crystal-penicillin g amidase/acylase) while adjusting pH concentration using alkaline; a step of adjusting pH concentration using inorganic acid. The alkaline is hydrocarbon alkali metal, alkali hydroxide metal, ammonia solution, or trialkyl amine. The hydrocarbon alkali metal is sodium carbonate or potassium carbonate.
    • 目的:提供一种制备头孢菌素类抗生素中间体的方法,以工业合成中间体的结晶水合物并开发抗生素。 构成:一种制备化学式1的头孢菌素类抗生素中间体的方法,包括:向化学式2的化合物中加入甲酚和苯酚并搅拌使羧基保护基团脱保护的步骤; 在使用碱性调节pH浓度的同时加入合成CLEC-PA(交联酶结晶 - 青霉素g酰胺酶/酰基转移酶)的步骤; 使用无机酸调节pH浓度的步骤。 碱性为烃类碱金属,碱金属氢氧化物,氨溶液或三烷基胺。 烃类碱金属是碳酸钠或碳酸钾。