Synthesis of microcolin analogs using trimethylsilylated lactams
摘要:
The synthesis of microcolin analogs is described using an approach that could be of considerable practical interest for structure-activity studies on microcolin and related peptides. This synthetic pathway is more efficient than the methods reported to date, and allows the variation of the Xaa-pyrrolin-2-one unit of these molecules, which has been shown to be crucial for the biological activity. (C) 1997 Elsevier Science Ltd.
The octanoyl and desacetyl analogue of the lipopeptide microcolinB isolated from Lyngbya majuscula was synthesized using a segment condensation strategy. To achieve this the unique 1-prolyl-methyl-2-pyrroline unit was prepared from Boc-Pro-Ala-OH in a five step synthesis. This segment was coupled to the dipeptide Boc-Thr-MeVal-OH using PyBoP®. Deprotection followed by PyBroP®-mediated coupling with
Synthesis of microcolin analogs using trimethylsilylated lactams
作者:Ralph-Heiko Mattern、Sarath P. Gunasekera、Oliver J. McConnell
DOI:10.1016/s0040-4039(97)00336-5
日期:1997.3
The synthesis of microcolin analogs is described using an approach that could be of considerable practical interest for structure-activity studies on microcolin and related peptides. This synthetic pathway is more efficient than the methods reported to date, and allows the variation of the Xaa-pyrrolin-2-one unit of these molecules, which has been shown to be crucial for the biological activity. (C) 1997 Elsevier Science Ltd.