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Kolesinska B, Rozniakowski KK, Fraczyk J, Relich I, Papini AM, Kaminski ZJ. The Effect of Counterion and Tertiary Amine on the Efficiency ofN-Triazinylammonium Sulfonates in Solution and Solid-Phase Peptide Synthesis. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402862] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
AbstractTertiary phosphines in reaction with 2-chloro-4,6-dialkoxy-1,3,5-triazines gave unstable quaternary P-triazinylphosphonium chlorides, which readily decomposed with a departure of the alkyl group of the triazine ring substituent. Stable quaternary P-triazinylphosphonium chlorides were obtained only in reaction of 2-chloro-4,6-diphenoxy-1,3,5-triazine. Both, stable quaternary P-triazinylphosphonium chlorides as well unstable analogues prepared in situ activated carboxylic acid yielding “superactive” triazine esters, useful as highly efficient reagents in peptide bond synthesis.
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Reddy KM, Shashidhar J, Pottireddygari GR, Ghosh S. Synthetic studies of stereocalpin A and its C5-epimer: total synthesis of 11-epi- and 5,11-diepi-stereocalpin A. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Affiliation(s)
- Ayman El-Faham
- Institute for Research in Biomedicine, Barcelona, Spain.
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Macromolecular Conjugates of Methotrexate, Ferrocene and Platinum in Cancer Chemotherapy. J Inorg Organomet Polym Mater 2011. [DOI: 10.1007/s10904-011-9497-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Valeur E, Bradley M. Amide bond formation: beyond the myth of coupling reagents. Chem Soc Rev 2009; 38:606-31. [DOI: 10.1039/b701677h] [Citation(s) in RCA: 1529] [Impact Index Per Article: 101.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Facile and purification free synthesis of peptides utilizing ROMPgel- and ROMPsphere-supported coupling reagents. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.06.120] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Barrett AGM, Hopkins BT, Köbberling J. ROMPgel reagents in parallel synthesis. Chem Rev 2002; 102:3301-24. [PMID: 12371886 DOI: 10.1021/cr0103423] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A G M Barrett
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, United Kingdom.
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