作者:Joshi M. Ramanjulu、Madeleine M. Joullié、Wen-Ren Li
DOI:10.1080/00397919708004186
日期:1997.9
Abstract The syntheses of three modified peptide fragments of the cyclodepsipeptide didemnin B are reported. The HIP and isostatine (1st) units of the didemnin B macrocycle were simplified to a Z-alanine residue and the ester linkage (through threonine of the tetrapeptide) was replaced with amide linkages through the amines of glycine, D-alanine and an ethylenediamine linker. The latter permitted the
摘要 报道了环缩肽didemnin B的三个修饰肽片段的合成。didemnin B 大环的 HIP 和异抑制素(第一)单元被简化为 Z-丙氨酸残基,酯键(通过四肽的苏氨酸)通过甘氨酸、D-丙氨酸和乙二胺接头的胺被酰胺键取代. 后者允许连接 N-Me-D-Leu-Pro-Lac 部分以分别提供类似物 2、3 和 4。