KRM-II-81[1]
Names
IUPAC name
5-(8-ethynyl-6-pyridin-2-yl-4H-imidazo[1,5-a][1,4]benzodiazepin-3-yl)-1,3-oxazole
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
  • InChI=1S/C21H13N5O/c1-2-14-6-7-17-15(9-14)20(16-5-3-4-8-23-16)24-10-18-21(25-12-26(17)18)19-11-22-13-27-19/h1,3-9,11-13H,10H2
    Key: KNCUEWYWBUIFTQ-UHFFFAOYSA-N
  • C#CC1=CC2=C(C=C1)N3C=NC(=C3CN=C2C4=CC=CC=N4)C5=CN=CO5
Properties
C21H13N5O
Molar mass 351.369 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

KRM-II-81 is a positive allosteric modulator of the GABAA receptor. It is selective for the alpha2 and alpha3 subunits. KRM-II-81 displays anxiolytic, antidepressant and anticonvulsant effects. However, it has less adverse effects than some other GABAA PAMs: it has low to no sedation and no tolerance development.[2]

A study has also shown KRM-II-81 to be better at treating seizures than diazepam.[3]

References

  1. ^ "KRM-II-81".
  2. ^ Witkin, Jeffrey M.; Lippa, Arnold; Smith, Jodi L.; Jin, Xiaoming; Ping, Xingjie; Biggerstaff, Andrew; Kivell, Bronwyn M.; Knutson, Daniel E.; Sharmin, Dishary; Pandey, Kamal P.; Mian, Md Yeunus; Cook, James M.; Cerne, Rok (February 2022). "The imidazodiazepine, KRM-II-81: An example of a newly emerging generation of GABAkines for neurological and psychiatric disorders". Pharmacology, Biochemistry, and Behavior. 213: 173321. doi:10.1016/j.pbb.2021.173321. ISSN 1873-5177. PMID 35041859. S2CID 245963990.
  3. ^ Knutson, Daniel E.; Smith, Jodi L.; Ping, Xingjie; Jin, Xiaoming; Golani, Lalit K.; Li, Guanguan; Tiruveedhula, V. V. N. Phani Babu; Rashid, Farjana; Mian, Md Yeunus; Jahan, Rajwana; Sharmin, Dishary; Cerne, Rok; Cook, James M.; Witkin, Jeffrey M. (2020-09-02). "Imidazodiazepine Anticonvulsant, KRM-II-81, Produces Novel, Non-diazepam-like Antiseizure Effects". ACS Chemical Neuroscience. 11 (17): 2624–2637. doi:10.1021/acschemneuro.0c00295. hdl:1805/28047. ISSN 1948-7193. PMID 32786313. S2CID 221123396.


This article needs additional or more specific categories. Please help out by adding categories to it so that it can be listed with similar articles. (February 2024)