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Rilmazafone

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Rilmazafone
File:Rilmazafone structure.svg
Systematic (IUPAC) name
1-[4-chloro-2-(2-chlorobenzoyl)phenyl]-5-[(glycylamino)methyl]-N,N-dimethyl-1H-1,2,4-triazole-3-carboxamide
Clinical data
AHFS/Drugs.com International Drug Names
oral
Pharmacokinetic data
Half-life 10.5 h
Excretion urine
Identifiers
99593-25-6 7pxY
None
PubChem CID 5069
ChemSpider 4891 7pxY
UNII CU3H37T766 7pxY
KEGG D08481 7pxY
Synonyms 5-([(2-aminoacetyl)amino]methyl)-1-[4-chloro-2-(2-chlorobenzoyl)phenyl]-N,N-dimethyl-1,2,4-triazole-3-carboxamide
Chemical data
Formula C21H20Cl2N6O3
475.328
 14pxY (what is this?)  (verify)

Rilmazafone[1] (Rhythmy, 450191-S) is a water-soluble benzodiazepine prodrug developed in Japan.[2] It has sedative and hypnotic effects.[3][4] Rilmazafone induces impairment of motor function and has hypnotic properties.[5]

Rilmazafone has no effects on benzodiazepine receptors itself, but once inside the body is metabolised by aminopeptidase enzymes in the small intestine to form the active benzodiazepine 8-chloro-6-(2-chlorophenyl)-N,N-dimethyl-4H-1,2,4-triazolo [1,5-a][1,4]benzodiazepine-2-carboxamide.[6][7]

File:Rilmazafone metabolite.svg
Rilmazafone active metabolite


See also

References

  1. DE Patent 2725164
  2. Yamamoto K, Hirose K, Matsushita A, Yoshimura K, Sawada T, Eigyo M, Jyoyama H, Fujita A, Matsubara K, Tsukinoki Y, et al. Pharmacological studies of a new sleep-inducer, 1H-1,2,4-triazolyl benzophenone derivatives (450191-S) (I). Behavioral analysis. Nippon Yakurigaku Zasshi. 1984 Jul;84(1):109-54. (Japanese).
  3. Yamamoto K, Matsushita A, Sawada T, Naito Y, Yoshimura K, Takesue H, Utsumi S, Kawasaki K, Hirono S, Koshida H, et al. Pharmacology of a new sleep inducer, 1H-1,2,4-triazolyl benzophenone derivative, 450191-S (II). Sleep-inducing activity and effect on the motor system. Nippon Yakurigaku Zasshi. 1984 Jul;84(1):25-89. (Japanese).
  4. Ibii N, Horiuchi M, Yamamoto K. Pharmacology of a 1H-1, 2, 4-triazolyl benzophenone derivative (450191-S), a new sleep-inducer (III). Behavioral study on interactions of 450191-S and other drugs in mice. Nippon Yakurigaku Zasshi. 1984 Aug;84(2):155-73. (Japanese).
  5. Yasui M; Kato A, Kanemasa T, Murata S, Nishitomi K, Koike K, Tai N, Shinohara S, Tokomura M, Horiuchi M, Abe K. (June 2005). "[Pharmacological profiles of benzodiazepinergic hypnotics and correlations with receptor subtypes]". Nihon Shinkei Seishin Yakurigaku Zasshi 25 (3): 143–51. PMID 16045197. 
  6. Koike M, Norikura R, Sugeno K. Intestinal activation of a new sleep inducer 450191-S, a 1H-1,2,4-triazolyl benzophenone derivative, in rats. Journal of Pharmacobiodynamics. 1986 Mar;9(3):315-20.
  7. Muranushi N, Miyauchi S, Suzuki H, Sugiyama Y, Hanano M, Kinoshita H, Oguma T, Yamada H. Comparative hepatic transport of desglycylated and cyclic metabolites of rilmazafone in rats: analysis by multiple indicator dilution method. Biopharmaceutics and Drug Disposition. 1993 May;14(4):279-90.