A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Solid-Phase Synthesis of 4(5),1 ',5 '-Trisubstituted 2,4 '-Biimidazoles
Tekijät: Karskela T, Lonnberg H
Kustantaja: AMER CHEMICAL SOC
Julkaisuvuosi: 2009
Lehti:: Journal of Organic Chemistry
Tietokannassa oleva lehden nimi: JOURNAL OF ORGANIC CHEMISTRY
Lehden akronyymi: J ORG CHEM
Vuosikerta: 74
Numero: 24
Aloitussivu: 9446
Lopetussivu: 9451
Sivujen määrä: 6
ISSN: 0022-3263
DOI: https://doi.org/10.1021/jo902122e
Tiivistelmä
A method for the synthesis of libraries of 4(5), 1',5'-tri substituted 2,4'-biimidazoles on a solid support was developed.(1) A trivalent scaffold, 2-(5'-amino-4(5)-formyl-1H,1'H-2,4'-biimidazol-1'-yl)acetic acid, was first prepared in solution by a two-step synthesis from ethyl adenin-9-ylacetate and bromomalonaldehyde. The product was coupled to an amino acid loaded Wang resin and the formyl group was subsequently derivatized either by reductive amination, oximation, or hydrazone formation. The 5'-amino group of the resin-bound biimidazole was then acylated and the products were finally released from the resin and purified. 5'-Amino-2,4'-biimidazole offers a scaffold for lead compounds of drug discovery, possibly useful in finding leads for protein kinase inhibitors.
A method for the synthesis of libraries of 4(5), 1',5'-tri substituted 2,4'-biimidazoles on a solid support was developed.(1) A trivalent scaffold, 2-(5'-amino-4(5)-formyl-1H,1'H-2,4'-biimidazol-1'-yl)acetic acid, was first prepared in solution by a two-step synthesis from ethyl adenin-9-ylacetate and bromomalonaldehyde. The product was coupled to an amino acid loaded Wang resin and the formyl group was subsequently derivatized either by reductive amination, oximation, or hydrazone formation. The 5'-amino group of the resin-bound biimidazole was then acylated and the products were finally released from the resin and purified. 5'-Amino-2,4'-biimidazole offers a scaffold for lead compounds of drug discovery, possibly useful in finding leads for protein kinase inhibitors.
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