U-90042

U-90042

Identifiers
IUPAC name 11-Chloro-5-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)-2,3-dihydrodiimidazo[1,2-c:1',5'-a]quinazoline
CAS Number	134516-99-7 Y
PubChem CID	9928470
ChemSpider	8104103 N
CompTox Dashboard (EPA)	DTXSID40158771
Chemical and physical data
Formula	C17H13ClN6O
Molar mass	352.78 g·mol−1
3D model (JSmol)	Interactive image
SMILES ClC1=CC2=C(C=C1)N3C=NC(C4=NOC(C5CC5)=N4)=C3N6C2=NCC6
InChI InChI=1S/C17H13ClN6O/c18-10-3-4-12-11(7-10)15-19-5-6-23(15)17-13(20-8-24(12)17)14-21-16(25-22-14)9-1-2-9/h3-4,7-9H,1-2,5-6H2 N Key:CLPSAAPUJUVQPP-UHFFFAOYSA-N N
NY (what is this?)  (verify)

U-90042 is a sedative and hypnotic drug used in scientific research. It has similar effects to sedative-hypnotic benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine hypnotic.

U-90042 is a GABA_A agonist acting primarily at the α1, α3 and α6 subtypes, with a Ki of 7.8nM at α1, 9.5nM at α3 and 11.0nM at α6. It produces sedation and ataxia and prolongs sleeping time in mice, rats and monkeys, but does not produce amnesia and blocks the amnestic effect of diazepam, reflecting its different subtype affinity compared to benzodiazepine drugs.^[1] It was developed by a team at Novo Nordisk in the 1980s.^[2]

References

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