2001
DOI: 10.1002/1521-3757(20010917)113:18<3503::aid-ange3503>3.0.co;2-u
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Fmoc-kompatible Festphasensynthese von langen, C-terminalen Peptidthioestern

Abstract: C-terminale Peptidthioester sind wertvolle Intermediate für die chemische Synthese von Proteinen durch Peptidfragmentkondensation, [1] von cyclischen Peptiden [2] sowie von Peptiddendrimeren. [3] Üblicherweise werden sie durch Festphasensynthese [4] oder bei längeren Segmenten biosynthetisch nach der Intein-Methode [5] hergestellt.Bis vor kurzem war die Festphasensynthese von C-terminalen Peptidthioestern im Wesentlichen auf die tert-Butoxycarbonyl(Boc)-Methode [4] beschränkt, da Peptidthioester nicht mit de… Show more

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Cited by 22 publications
(4 citation statements)
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“…BPTI 1±37 was prepared as a thioester, 1b, by conventional Fmoc ([(9H-fluoren-9-yl)methoxy]carbonyl) solid-phase peptide synthesis (SPPS) [22] on a PAM resin, followed by direct cleavage of the peptide from the resin with AlMe 3 and ethanethiol [23]. The second fragment, Cys38Sec-BPTI 38±58 (2b), was synthesized on a Wang resin.…”
supporting
confidence: 89%
“…BPTI 1±37 was prepared as a thioester, 1b, by conventional Fmoc ([(9H-fluoren-9-yl)methoxy]carbonyl) solid-phase peptide synthesis (SPPS) [22] on a PAM resin, followed by direct cleavage of the peptide from the resin with AlMe 3 and ethanethiol [23]. The second fragment, Cys38Sec-BPTI 38±58 (2b), was synthesized on a Wang resin.…”
supporting
confidence: 89%
“…[37] The Boc strategy, however, requires HF to cleave the resin-bound thioester 21 and deliver thioester 22 (Scheme 4 A). [47] Another common approach for the synthesis of thioesters employs a highly acid-sensitive TGT [48] or 2-chlorotrityl resin 25, [49] which allow cleavage under mild acidic conditions to yield protected peptides 26. [37] Various strategies which take into account the high electrophilicity of thioesters have been developed for the Fmoc-based synthesis of peptide thioesters.…”
Section: Chemical Requirements and Synthesis Of The Starting Materialsmentioning
confidence: 99%
“…Alternatively, peptides on HMBA (4hydroxymethylbenzoic acid) or PAM (4-hydroxymethylphenylacetamidomethyl polystyrene) resins can be converted into thioesters with alkylaluminum thiolates. [47] Another common approach for the synthesis of thioesters employs a highly acid-sensitive TGT [48] or 2-chlorotrityl resin 25, [49] which allow cleavage under mild acidic conditions to yield protected peptides 26. The thioester is introduced by Cterminal activation of the protected peptide in solution after cleavage from the resin and subsequent coupling with a thiol.…”
Section: Chemical Requirements and Synthesis Of The Starting Materialsmentioning
confidence: 99%
“…Alternative approaches which may be amenable to the synthesis of glycopeptide thioesters include Fmoc removal using non-nucleophilic base cocktails, Lewis acid-catalyzed release, racemization-free photochemical approaches, and oxidation-based safety catch strategies. [29][30][31][32][33][34][35][36] The most common and widely used approach for obtaining glycopeptide thioesters involves synthesis on sulfamylbutyryl resin using an activation and thiol release strategy. [37][38][39][40] Based on this technique, a variant of the O-linked glycoprotein diptericin e and a fragment of the N-linked glycoprotein RNase B have been successfully synthesized.…”
Section: Introductionmentioning
confidence: 99%