| Literature DB >> 19762245 |
Takashi Yamamoto1, Padma Nair, Shou-wu Ma, Peg Davis, Henry I Yamamura, Todd W Vanderah, Frank Porreca, Josephine Lai, Victor J Hruby.
Abstract
In order to improve metabolic stability, a ring structure with a cystine moiety was introduced into TY027 (Tyr-D-Ala-Gly-Phe-Met-Pro-Leu-Trp-NH-[3',5'-(CF(3))(2)Bzl]), which is a lead compound of our developing bifunctional peptide possessing opioid agonist and NK1 antagonist activities. TY038 (Tyr-cyclo[D-Cys-Gly-Phe-Met-Pro-D-Cys]-Trp-NH-[3',5'-(CF(3))(2)Bzl]) was found as a highly selective delta opioid agonist over mu receptor in conventional tissue-based assays, together with an effective NK1 antagonist activity and good metabolic stability with more than 24h half life in rat plasma.Entities:
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Year: 2009 PMID: 19762245 PMCID: PMC2775479 DOI: 10.1016/j.bmc.2009.08.035
Source DB: PubMed Journal: Bioorg Med Chem ISSN: 0968-0896 Impact factor: 3.641