Biomimetic formation of gramicidin S by dimerization–cyclization of pentapeptide precursor on solid support
作者:Makoto Tamaki、Kenji Honda、Sho Kikuchi、Rie Ishii
DOI:10.1016/j.tetlet.2006.09.146
日期:2006.11
The biomimetic formation of gramicidin S, cyclo(-D-Phe-Pro-Val-Orn-Leu-)(2), by the dimerization and cyclization of pentapeptide precursor without the protection of delta-amino group of the Orn residue was examined on a solid support. The cyclization of H-D-Phe-Pro-Val-Orn-Leu-oxime on a resin with an oxime group of 0.62 mmol/g in 1,4-dioxane directly gave gramicidin S in a 50% yield. The dimerization-cyclization mode on the solid support was similar to that of the biosynthesis of gramicidin S on an enzyme. (c) 2006 Elsevier Ltd. All rights reserved.