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New and Highly Efficient Immonium Type Peptide Coupling Reagents: Synthesis, Mechanism and Application
โ Scribed by Peng Li; Jie-Cheng Xu
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 176 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0040-4020
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โฆ Synopsis
AbstractรA series of novel immonium type coupling reagents BOMI, BDMP, BPMP, DOMP, SOMP, FOMP and AOMP were designed and synthesized. It was shown that most of these reagents were more efยฎcient in peptide synthesis than conventional methods due to the advantages of high reactivity, low racemization and good yields. The reaction mechanism was proposed and studied by 1 H NMR, IR, UV and HPLC.
๐ SIMILAR VOLUMES
An efficient scalable synthesis of 2-halothiazolium-type peptide coupling reagents has been developed. The key step is the formation of the 2-bromothiazole scaffold through cyclization of a-thiocyanato ketones with hydrogen bromide. Using this method, the new coupling reagent 2-bromo-N-methylthiazol