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Bromisoval
Skeletal formula of bromisoval
Names
IUPAC name
(RS)-2-Bromo-N-carbamoyl-3-methylbutanamide[ citation needed]
Identifiers
3D model ( JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.007.115 Edit this at Wikidata
EC Number
  • 207-825-7
KEGG
MeSH Bromisovalum
PubChem CID
UNII
  • InChI=1S/C6H11BrN2O2/c1-3(2)4(7)5(10)9-6(8)11/h3-4H,1-2H3,(H3,8,9,10,11) checkY
    Key: CMCCHHWTTBEZNM-UHFFFAOYSA-N checkY
  • CC(C)C(Br)C(=O)NC(N)=O
Properties
C6H11BrN2O2
Molar mass 223.070 g·mol−1
log P 1.057
Acidity (pKa) 10.536
Basicity (pKb) 3.461
Pharmacology
N05CM03 ( WHO)
Oral
Related compounds
Related ureas
Carbromal
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Bromisoval ( INN), commonly known as bromovalerylurea, is a hypnotic and sedative of the bromoureide group discovered by Knoll in 1907 and patented in 1909. [1] It is marketed over the counter in Asia under various trade names (such as Brovarin [2]), usually in combination with nonsteroidal anti-inflammatory drugs.

Chronic use of bromisoval has been associated with bromine poisoning. [3] [4] [5] [6]

Bromisoval can be prepared by bromination of isovaleric acid by the Hell-Volhard-Zelinsky reaction followed by reaction with urea.

See also

References

  1. ^ US patent 914518, Saam, E., "Alpha-halogen-isovaleryl-urea and process of making the same", issued 1909-03-09, assigned to Knoll 
  2. ^ "Bromisoval". International. Drugs.com.
  3. ^ Hashida, H.; Honda, T.; Morimoto, H.; Aibara, Y. (2001). "市販鎮痛剤常用量の服用による慢性ブロム中毒の1例" [A case of chronic bromvalerylurea intoxication due to habitual use of commercially available nonsteroidal anti-inflammatory drugs presenting an indefinite hyperchloremia] (pdf). Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics (in Japanese). 38 (5): 700–703. doi: 10.3143/geriatrics.38.700. ISSN  0300-9173. PMID  11605223.
  4. ^ Kawakami, T.; Takiyama, Y.; Yanaka, I.; Taguchi, T.; Tanaka, Y.; Nishizawa, M.; Nakano, I. (1998). "Chronic bromvalerylurea intoxication: Dystonic posture and cerebellar ataxia due to nonsteroidal anti-inflammatory drug abuse" (pdf). Internal Medicine. 37 (9). Tokyo, Japan: 788–791. doi: 10.2169/internalmedicine.37.788. PMID  9804091.
  5. ^ Wang, Y. -T.; Yang, S. Y.; Wu, V. C.; Wu, K. D.; Fang, C. C. (2005). "Pseudohyperchloraemia due to bromvalerylurea abuse". Nephrology Dialysis Transplantation. 20 (8): 1767–1768. doi: 10.1093/ndt/gfh945. PMID  15972320.
  6. ^ Arai, A.; Sato, M.; Hozumi, I.; Matsubara, N.; Tanaka, K.; Soma, Y.; Adachi, T.; Tsuji, S. (1997). "Cerebellar Ataxia and Peripheral Neuropathy due to Chronic Bromvalerylurea Poisoning" (pdf). Internal Medicine. 36 (10). Tokyo, Japan: 742–746. doi: 10.2169/internalmedicine.36.742. PMID  9372340.