New antiviral antibiotics, Kistamicins A and B. II. Structure determination.
作者:NOBUAKI NARUSE、MASAHISA OKA、MASATAKA KONISHI、TOSHIKAZU OKI
DOI:10.7164/antibiotics.46.1812
日期:——
The structures of antiviral antibiotics kistamicins A and B have been determined by a combination of chemical degradation and spectral analysis. They are commonly composed of D-tyrosine, 3, 5-dihydrophenylglycine, a biphenyl ether bis-amino acid, and a diphenyl substituted indole tris-amino acid, forming a tricyclic ring structure. Kistamicin B possessed a phenethylamide at the amino terminal of kistamicin A. They are structurally related to the nuclei of the vancornycin group antibiotics particularly to antibiotic complestatin.
抗病毒抗生素 kistamicins A 和 B 的结构已通过化学降解和光谱分析的结合确定。它们通常由D-酪氨酸、3,5-二氢苯基甘氨酸、联苯醚双氨基酸和二苯基取代的吲哚三氨基酸组成,形成三环结构。 Kistamicin B 在 Kistamicin A 的氨基末端具有苯乙酰胺。它们在结构上与万古霉素类抗生素的核相关,特别是与抗生素补体他汀相关。