Synthesis of new opioid derivatives with a propellane skeleton and their pharmacology: Part 1

Synthesis of new opioid derivatives with a propellane skeleton and their pharmacology: Part 1 Design and synthesis of 10-oxo derivative of N-cyclopropylmethyl (−)-6β-acetylthiodihydro-normorphine, a potentially κ-selective opioid receptor ligand Design, synthesis, and structure–activity relationship of novel opioid κ receptor selective agonists: α-Iminoamide derivatives with an azabicyclo[2.2.2]octene skeleton Synthesis of new opioid derivatives with a propellane skeleton and their pharmacologies: Part 5, novel pentacyclic propellane derivatives with a 6-amide side chain Non-peptide ligands for opioid receptors. Design of .kappa.-specific agonists Synthesis and Pharmacology of a Novel κ Opioid Receptor (KOR) Agonist with a 1,3,5-Trioxazatriquinane Skeleton Synthesis and Biological Evaluation of 14-Alkoxymorphinans. 18. N-Substituted 14-Phenylpropyloxymorphinan-6-ones with Unanticipated Agonist Properties:  Extending the Scope of Common Structure−Activity Relationships Synthesis of quinolinomorphinan-4-ol derivatives as δ opioid receptor agonists Highly selective .kappa.-opioid analgesics. 3. Synthesis and structure-activity relationships of novel N-[2-(1-pyrrolidinyl)-4- or -5-substituted cyclohexyl]arylacetamide derivatives Syntheses of 4,6′-epoxymorphinan derivatives and their pharmacologies