Solid-phase peptide synthesis of analogues of the N-terminus A-ring fragment of the lantibiotic nisin: Replacements for the dehydroalanine (Dha) residue at position 5 and the first incorporation of a thioamide residue
作者:Kim Manzor、Keith ó Proinsias、Fintan Kelleher
DOI:10.1016/j.tetlet.2017.06.052
日期:2017.7
A number of A-ring analogues of the lantibiotic nisin, containing replacements for the Dha residue at position 5, have been successfully prepared by solid-phase peptide synthesis. The Dha replacements include glycine, alanine, phenylalanine, serine and 1-aminocyclopropyl carboxylic acid (ACCa). The incorporation of a thioamide-isoleucine residue at position 4 is also described and represents the first
已通过固相肽合成成功制备了羊毛硫霉菌乳链菌肽的许多A环类似物,其中含有Dha残基的第5位残基的替代物。Dha替代品包括甘氨酸,丙氨酸,苯丙氨酸,丝氨酸和1-氨基环丙基羧酸(ACCa)。还描述了在位置4处引入硫代酰胺-异亮氨酸残基,其代表了首次报道的含有硫代酰胺键的羊毛硫抗生素环片段的制备。