Pazinaclone

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Pazinaclone
Pazinaclone-2d-skeletal.svg
Systematic (IUPAC) name
2-(7-chloro-1,8-naphthyridin-2-yl)-3-[2-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)-2-oxoethyl]-3H-isoindol-1-one
Clinical data
Legal status
?
Identifiers
CAS number 103255-66-9 YesY
ATC code None
PubChem CID 59743
ChemSpider 53893 YesY
UNII MHK03047IJ YesY
Chemical data
Formula C25H23ClN4O4 
Mol. mass 478.928 g/mol
 YesY (what is this?)  (verify)

Pazinaclone (DN-2327) is a sedative and anxiolytic drug in the cyclopyrrolone family of drugs. Other cyclopyrrolone drugs include zopiclone and eszopiclone.

Pazinaclone has a very similar pharmacological profile to the benzodiazepine family of drugs including sedative and anxiolytic properties, but with less amnestic effects,[1] and at low doses it is a relatively selective anxiolytic, with sedative effects only appearing at higher doses.[2]

Pazinaclone produces its sedative and anxiolytic effects by acting as a partial agonist at GABAA benzodiazepine receptors, although pazinaclone is more subtype-selective than most benzodiazepines.[3]

Synthesis[edit]

Pazinaclone synthesis: U.S. Patent 4,778,801

References[edit]

  1. ^ Wada T, Fukuda N. Effect of a new anxiolytic, DN-2327, on learning and memory in rats. Pharmacology, Biochemistry and Behavior. 1992 Mar;41(3):573-9.
  2. ^ Suzuki M, Uchiumi M, Murasaki M. A comparative study of the psychological effects of DN-2327, a partial benzodiazepine agonist, and alprazolam. Psychopharmacology (Berlin). 1995 Oct;121(4):442-50.
  3. ^ Atack JR. The benzodiazepine binding site of GABA(A) receptors as a target for the development of novel anxiolytics. Expert Opinion on Investigational Drugs. 2005 May;14(5):601-18.