Opioid ligands with mixed properties from substituted enantiomeric <i>N</i>-phenethyl-5-phenylmorphans. Synthesis of a µ-agonist δ-antagonist and δ-inverse agonists
作者:Kejun Cheng、In Jong Kim、Mei-Jing Lee、Steven A. Adah、Tyler J. Raymond、Edward J. Bilsky、Mario D. Aceto、Everette L. May、Louis S. Harris、Andrew Coop、Christina M. Dersch、Richard B. Rothman、Arthur E. Jacobson、Kenner C. Rice
DOI:10.1039/b618875c
日期:——
A novel potent non-peptide morphine-like antinociceptive with μ-agonist and δ-antagonist properties represents a lead towards non-dependence producing analgesics.
acetolysis rates of 2-arylethyl tosylates were determined for a series of aryl substituents. The non-linear substituent effect was reasonably accounted for on the basis of two linear LArSR relationships; one for the aryl-assisted (FkΔ) and one for the unassisted (ks) processes, respectively. A precise dissection of the apparent substituent effect into individual effects for both processes was achieved
block with the tetracyclic A/B/C/D ring system, a concise enantioselective totalsynthesis of (−)-cephalotaxine starting from readily available homopiperonyl alcohol has been achieved in nine steps with only two column chromatography purifications. Following the tactical introduction of the Meinwald rearrangement, enantioselective divergent syntheses of (−)-cephalotine B with an additional C3–O–C11
Aminocycloalkane compounds represented by the following general formula:
wherein Ar represents a phenyl group or thienyl group with an optional substituent on the ring, X represents a cyano group or carbamoyl group, R1 and R2 are each independent, R1 representing a hydrogen atom or lower alkyl group and R2 representing a hydrogen atom, lower alkyl group, an -A-B group (where A represents a lower alkylene group that is optionally branched and B represents a phenyl group, pyridyl group, thiazole group, imidazole group, furyl group or pyrrolidinyl group with an optional substituent on the ring) or an alkenyl group, or R1 and R2 together with the nitrogen atom to which they are bonded represent
(where R3 represents a hydrogen atom, a lower alkyl group that is optionally substituted with a phenyl group, or an alkenyl group), and m represents 2, 3 or 4, and pharmacologically acceptable salts thereof.
The compounds have highly selective antagonistic activity for muscarinic M3 receptor subtypes, and are therefore useful as preventive or therapeutic agents for diseases related to muscarinic M3 receptor subtypes.