Identification of simpler analogs of neurotensin(9–13) which retain antinociceptive activity

Identification of simpler analogs of neurotensin(9–13) which retain antinociceptive activity Identification and Functional Characterization of a Stable, Centrally Active Derivative of the Neurotensin (8−13) Fragment as a Potential First-in-Class Analgesic Preparation and analgesic properties of amino acid derivatives of (-)-5,9.alpha.-diethyl-2'-hydroxybenzomorphan Synthesis and Characterization in Vitro and in Vivo of (<scp>l</scp>)-(Trimethylsilyl)alanine Containing Neurotensin Analogues New potent enkephalin analogs containing trifluoromethylamino acid residues Peripherally acting enkephalin analogs. 1. Polar pentapeptides Novel analogs of enkephalin: identification of functional groups required for biological activity Replacement of the peptide-backbone amides connecting Tyr-Gly and Gly-Gly in leucine-enkephalin with ketomethylene groups: synthesis and biological activity Design, Structural Optimization, and Characterization of the First Selective Macrocyclic Neurotensin Receptor Type 2 Non-opioid Analgesic Bradykinin analogs containing N.alpha.-methyl amino acids