申请人:Chen Mao
公开号:US20140128359A1
公开(公告)日:2014-05-08
The invention relates to N-heterocyclic substituent-containing antibiotics, their preparation, and their use. Disclosed are sodium and potassium salts of 7-(α-((N,N′-diisopropylamidino)thio)acetylamino)-3-(((1,2,5,6-tetrahydro-2-methyl-5,6-diox o-1,2,4-triazin-3-yl)thio)methyl) cephalosporanic acid as presented by the general structure (I), their preparation, and their use. The antibiotics of the invention can be used to treat diseases caused by Gram-positive or Gram-negative bacteria such as septicaemia, gastrointestinal tract infection, and urinary tract infection. They have increased half-life in blood and lowered toxicity. They can reduce the frequency of drug use and lower medical treatment costs. They have improved stability and can be stored at ambient temperatures. The method of the invention is simple, and it produces high purity products which can meet the requirements of clinical use.
本发明涉及含有N-杂环取代基的抗生素、其制备方法及其用途。公开了7-(α-((N,N'-二异丙脒基)硫基)乙酰氨基)-3-(((1,2,5,6-四氢-2-甲基-5,6-二氧代-1,2,4-三嗪-3-基)硫基)甲基)头孢菌酸的一般结构(I)的钠盐和钾盐,它们的制备方法及其用途。本发明的抗生素可用于治疗由革兰氏阳性菌或革兰氏阴性菌引起的疾病,如败血症、胃肠道感染和尿路感染。它们在血液中的半衰期延长,毒性降低。它们可以减少用药频率,降低医疗治疗成本。它们具有改善的稳定性,可以在常温下储存。本发明的方法简单,可以生产高纯度的产品,满足临床使用的要求。