The synthesis of the naturally occurring marine cyclopeptide phakellistatin 13 has been achieved by solid phase peptide synthesis (SPPS). A general method was described to synthesize the cyclic peptide by a two-step solid-phase/solution synthesis strategy. The linear peptide was assembled by standard Fmoc chemistry on solid-phase and subsequently cyclized in solution phase to yield fully protected cyclic heptapeptide. After removing the protected groups, phakellistatin 13 was obtained and purified by semi-preparative reverse phase high-performance RP-HPLC, and its structure was confirmed by NMR and HR-ESI-MS.
通过固相肽合成(
SPPS)技术合成了天然海洋环肽 phakellistatin 13。该研究介绍了一种通过两步固相/溶液合成策略合成环肽的一般方法。线性肽通过标准的 Fmoc
化学反应在固相上合成,然后在溶液相中环化,得到完全保护的环状七肽。去除保护基团后,得到 phakellistatin 13,并通过半制备反相高性能 RP-HPLC 进行纯化,其结构通过 NMR 和 HR-ESI-MS 得到确认。