13052-99-8Relevant academic research and scientific papers
Selective κ-opioid agonists: Synthesis and structure-activity relationships of piperidines incorporating an oxo-containing acyl group
Giardina,Clarke,Dondio,Petrone,Sbacchi,Vecchietti
, p. 3482 - 3491 (2007/10/02)
This study describes the synthesis and the structure-activity relationships (SARs) of the (S)-(-)-enantiomers of a novel class of 2- (aminomethyl)piperidine derivatives, using κ-opioid binding affinity and antinociceptive potency as the indices of biological activity. Compounds incorporating the 1-tetralon-6-ylacetyl residue (30 and 34-45) demonstrated an in vivo antinociceptive activity greater than predicted on the basis of their κ-binding affinities. In particular, (2S)-2-[(dimethylamino)methyl]- 1-[(5,6,7,8-tetrahydro-5-oxo-2-naphthyl)acetyl]piperidine (34) was found to have a potency similar to spiradoline in animal models of antinociception after subcutaneous administration, with ED50s of 0.47 and 0.73 μmol/kg in the mouse and in the rat abdominal constriction tests, respectively. Further in vivo studies in mice and/or rats revealed that compound 34, compared to other selective κ-agonists, has a reduced propensity to cause a number of κ-related side effects, including locomotor impairment/sedation and diuresis, at antinociceptive doses. For example, it has an ED50 of 26.5 μmol/kg sc in the rat rotarod model, exhibiting a ratio of locomotor impairment/sedation vs analgesia of 36. Possible reasons for this differential activity and its clinical consequence are discussed.
ARENES FROM ALKANES OR CYCLOALKANES THROUGH DEHYDRATION OR REARRANGEMENT WITH PYRIDINIUM CHLORIDE
Baiocchi, Leandro,Giannangeli, Marilena,Bonanomi, Michele,Picconi, Giuseppe,Ridolfi, Pietro
, p. 199 - 216 (2007/10/02)
The preparations of various kinds of arylacetic acids both from the precursors and from the synthetic equivalents of (2-oxocyclohexenyl)acetic acids are reviewed.Particular attention is paid to the methods by which these intermediates can be obtained since the usefulness of the reaction is obviously bound to substrate availability.Further developments in the field of aromatic hydrocarbons and heterocyclic compounds are illustrated and a model for the reaction is proposed.In addition to the data already published in scientific journals and in the patent literature, several unpublished data are reported.
