Semi-synthetic glycopeptides having antibacterial activity are described, in particular, the semi-synthetic glycopeptides described herein are made by chemical modification of the a glycopeptide (Compound A, Compound B, Compound H or Compound C) or the monosaccharide made by hydrolyzing the disaccharide moiety of the amino acid-4 of the parent glycopeptide in acidic medium to give the amino acid-4 monosaccharide; conversion of the monosaccharide to the amino-sugar derivative; acylation of the amino substituent on the amino acid-4 amino-substituted sugar moiety on these scaffolds with certain acyl groups; conversion of the amide group in amino acid-3 on these scaffolds to various acylamide, acylsulfonamide, acylsulfonylurea derivatives; aminomethylation with substituent containing sulfonamide or acylsulfonamide group on amino acid-7 through Mannich reaction; and conversion of the acid moiety on the macrocyclic ring of these scaffolds to certain substituted amides. Also provided are methods for the synthesis of the compounds, pharmaceutical compositions containing the compounds, and methods of use of the compounds for the treatment and/or prophylaxis of diseases, especially bacterial infections.
所描述的具有抗菌活性的半合成糖肽,特别是这里描述的半合成糖肽是通过对一种糖肽(化合物A、化合物B、化合物H或化合物C)进行
化学修饰制备的,或者通过在酸性介质中
水解
氨基酸-4的二糖基团以得到
氨基酸-4
单糖基团;将
单糖转化为
氨基糖衍
生物;用特定酰基对这些支架上
氨基酸-4
氨基取代糖基团上的
氨基取代基进行酰化;将这些支架上
氨基酸-3中的酰胺基团转化为各种酰胺、酰磺酰胺、酰磺酰
脲衍
生物;通过曼尼希反应在
氨基酸-7上含有
磺胺基或酰磺酰胺基团的取代基上进行
氨甲基化;以及将这些支架上大环环上的酸基团转化为特定取代酰胺。还提供了合成这些化合物的方法,含有这些化合物的药物组合物,以及这些化合物用于治疗和/或预防疾病,特别是细菌感染的方法。