作者:Maria Lumbierres、Jose M. Palomo、Goran Kragol、Sonja Roehrs、Oliver Müller、Herbert Waldmann
DOI:10.1002/chem.200500476
日期:2005.12.9
methodology for the solid-phasesynthesis of lipidatedpeptides has been developed. The approach is based on the use of previously synthesized building blocks and overcomes the limitations of previously reported methods, since long doubly lipidatedpeptides can be synthesized by using this route. Furthermore, it was thus possible to prepare a large number of N- and H-Ras peptides bearing a wide range
Solid-phase synthesis of palmitoylated and farnesylated lipopeptides employing the fluoride-labile PTMSEL linker
作者:Maria Lumbierres、Jose M. Palomo、Goran Kragol、Herbert Waldmann
DOI:10.1016/j.tetlet.2006.02.109
日期:2006.4
Acid- and base-labile S-palmitoylated and S-farnesylated lipopeptides can be synthesized in high overall yield employing the (2-phenyl-2-trimethylsilyl) ethyl (PTMSEL) linker for anchoring to and release under almost neutral conditions from the solid support.
Controlled thioamide vs. amide formation in the thioacid–azide reaction under acidic aqueous conditions
作者:Michaela Mühlberg、Kristina D. Siebertz、Brigitte Schlegel、Peter Schmieder、Christian P. R. Hackenberger
DOI:10.1039/c4cc00774c
日期:——
The thioacidâazide reaction and its chemoselectivity were probed with alkyl azides for a potential application to form amide bonds in aqueous solvents. Our results reveal that under acidic conditions thioamides were formed as major reaction products suggesting a competing mechanism, whereas reactions forming amides predominated at slightly higher pH values.