| Literature DB >> 21925887 |
Ruben Vardanyan1, Vlad K Kumirov, Gary S Nichol, Peg Davis, Erika Liktor-Busa, David Rankin, Eva Varga, Todd Vanderah, Frank Porreca, Josephine Lai, Victor J Hruby.
Abstract
Newly designed bivalent ligands-opioid agonist/<span class="Gene">NK1-antagonists have been synthesized. The synthesis of new starting materials-<class="Chemical">span class="Chemical">carboxy-derivatives of Fentanyl (1a-1c) was developed. These products have been transformed to 'isoimidium perchlorates' (2a-c). The new isoimidium perchlorates have been successfully implemented in nucleophilic addition reactions, with l-tryptophan 3,5-bis(trifluoromethyl)benzyl ester to give the target compounds-amides (3a-c). Perchlorates (2a-c) successfully undergo reactions with other nucleophiles such as alcohols, amines or hydrazines. The obtained compound 3b exhibited μ-opioid agonist activity and NK1-antagonist activity and may serve as a useful lead compound for the further design of a new series of opioid agonist/NK1-antagonist compounds. Published by Elsevier Ltd.Entities:
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Year: 2011 PMID: 21925887 PMCID: PMC4137774 DOI: 10.1016/j.bmc.2011.08.027
Source DB: PubMed Journal: Bioorg Med Chem ISSN: 0968-0896 Impact factor: 3.641