Lirequinil

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Lirequinil
Lirequinil structure.png
Systematic (IUPAC) name
10-chloro-1-[(3S)-3-ethoxypyrrolidine-1-carbonyl]-3-phenyl-6,7-dihydrobenzo[a]quinolizin-4-one
Identifiers
CAS Number 143943-73-1 YesY
ATC code none
PubChem CID: 3045375
ChemSpider 2308119 N
UNII 2VUW1087AD YesY
Chemical data
Formula C26H25ClN2O3
Molecular mass 448.941 g/mol
  • CCO[C@H]1CCN(C1)C(=O)C2=C3C4=C(CCN3C(=O)C(=C2)C5=CC=CC=C5)C=CC(=C4)Cl
  • InChI=1S/C26H25ClN2O3/c1-2-32-20-11-12-28(16-20)25(30)23-15-22(17-6-4-3-5-7-17)26(31)29-13-10-18-8-9-19(27)14-21(18)24(23)29/h3-9,14-15,20H,2,10-13,16H2,1H3/t20-/m0/s1 N
  • Key:CBSWRAUYCIIUEI-FQEVSTJZSA-N N
 NYesY (what is this?)  (verify)

Lirequinil (Ro41-3696) is a nonbenzodiazepine hypnotic drug which binds to benzodiazepine sites on the GABAA receptor. In human clinical trials, lirequinil was found to have similar efficacy to zolpidem, with less side effects such as clumsiness and memory impairment. However it was also much slower acting than zolpidem, with peak plasma concentrations not reached until 2.5 hours after oral administration, and its O-desethyl metabolite Ro41-3290 is also active with a half-life of 8 hours.[1][2][3][4] This meant that while effective as a hypnotic, lirequinil failed to prove superior to zolpidem due to producing more next-day sedation, and it has not been adopted for clinical use. It was developed by a team at Hoffmann-La Roche in the 1990s.[5]

Active metabolite Ro41-3290

References

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  5. ↑ US Patent 5561233 Process for the preparation of an intermediate of a benzo[a]quinolizinone derivative
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