Dimethoxanate

Last updated
Dimethoxanate
Dimethoxanate.png
Clinical data
Trade names Atuss, Cothera, Cotrane, Perlatos, Pulmoll, Tussizid
AHFS/Drugs.com International Drug Names
ATC code
Identifiers
  • 2-(2-dimethylaminoethoxy)ethyl phenothiazine-10-carboxylate
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
CompTox Dashboard (EPA)
ECHA InfoCard 100.006.838 OOjs UI icon edit-ltr-progressive.svg
Chemical and physical data
Formula C19H22N2O3S
Molar mass 358.46 g·mol−1
3D model (JSmol)
  • O=C(OCCOCCN(C)C)N1c3c(Sc2c1cccc2)cccc3
  • InChI=1S/C19H22N2O3S/c1-20(2)11-12-23-13-14-24-19(22)21-15-7-3-5-9-17(15)25-18-10-6-4-8-16(18)21/h3-10H,11-14H2,1-2H3 Yes check.svgY
  • Key:OOVJCSPCMCAXEX-UHFFFAOYSA-N Yes check.svgY
   (verify)

Dimethoxanate (trade names Cothera, Cotrane, Atuss, Perlatoss, Tossizid) [1] is a cough suppressant of the phenothiazine class. [2]

Contents

Side effects

Dimethoxanate may have analgesic, local anesthetic, and central nervous system depressant effects, but it may also produce nausea and vomiting. [3]

Pharmacology

It binds to the sigma-1 receptor in the brain with an IC50 of 41 nM. [4]

Society and culture

Dimethoxanate was introduced in Austria, Belgium, and France in 1911, and in Italy and Spain in 1963. [5] Approval for marketing in the US was withdrawn by the FDA in 1975 due to lack of evidence of efficacy. [6]

Synthesis

Synthesis: Patent: Dimethoxanate synthesis.svg
Synthesis: Patent:

Phenothiazine (1) is reacted with phosgene to give Phenothiazine-10-carbonyl chloride [18956-87-1] (2). Further reaction with 2-(2-(dimethylamino)ethoxy)ethanol [1704-62-7] (3) completed the synthesis of Dimethoxanate (4).

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References

  1. William Andrew Publishing (22 October 2013). Pharmaceutical Manufacturing Encyclopedia. Elsevier. pp. 1332–3. ISBN   978-0-8155-1856-3.
  2. Parish FA (November 1959). "Clinical evaluation of the antitussive, dimethoxanate". Medical Times. 87: 1488–90. PMID   14430450.
  3. Martín AV (2004). "Tratamiento sintomático de la tos y del resfriado común". Farmacología clínica y terapéutica médica. McGraw-Hill/Interamericana. p. 260. ISBN   9788448604271.
  4. Klein M, Musacchio JM (October 10, 1988). "Dextromethorphan binding sites in the guinea pig brain". Cellular and Molecular Neurobiology. 8 (2): 149–156. doi:10.1007/BF00711241. PMID   3044591. S2CID   33844132.
  5. Schlesser JL (1991). Drugs Available Abroad, 1st Edition. Derwent Publications Ltd. p. 67. ISBN   0-8103-7177-4.
  6. Cough Preparation Containing Dimethoxanate Hydrochloride (PDF). Federal Register (Report). Vol. 40. December 18, 1975. 75N–0321.
  7. Weston, Arthur W.; DeNet, Robert W.; Michaels, R. J. (1953). "Antispasmodics. Basic Esters and Amides of Some Heterocyclic N-Carboxylic Acids". Journal of the American Chemical Society. 75 (16): 4006–4008. doi:10.1021/ja01112a038.
  8. Seemann Carl Von, U.S. patent 2,778,824 (1957 to American Home Prod).