Chionodoxa

by | Mar 12, 2018 | Chionodoxa

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Clomacran is an antipsychotic drug of the dihydroacridine class, developed in the 1970s[2] by the pharmaceutical company Smith, Kline & French (now GlaxoSmithKline) under the brand names Devryl and Olaxin.[1]

It was used to treat schizophrenia in the 70s.[6] It was withdrawn from the market in the UK, due to liver toxicity, in 1982.[4][7][8]

Synthesis

Patents:[9][10][11][12]

The first step involves FGI of 3-chloro-N,N-dimethylpropylamine Fb: [109-54-6] (2) into the Grignard reagent, i.e. (3-(Dimethylamino)propyl)magnesium chloride [19070-16-7] ([154034-91-0]). The Grignard reaction with 2-chloroacridone [7497-52-1] (1) affords the tertiary carbinol (3). Dehydration by means of acid or simply heat gives the corresponding olefin (4). Catalytic reduction completes the synthesis of (5).

References

  1. ^ a b c "Clomacran | 5310-55-4". ChemicalBook. Retrieved 2023-08-25.
  2. ^ a b Elks J, Ganellin CR, eds. (1990). Dictionary of Drugs. Boston, MA: Springer US. p. 297. doi:10.1007/978-1-4757-2085-3. ISBN 978-1-4757-2087-7.
  3. ^ "Substâncias e remédios sob controle" [Substances and drugs under control] (PDF). Jornal do Brasil (in Brazilian Portuguese). 1986-11-05. p. 14. Archived (PDF) from the original on 2023-08-08. Retrieved 2023-08-08.
  4. ^ a b Dixit N, Patel C, Bhavsar M, Patel S, Rawal R, Solanki H (2022-05-02). "Quantitative Structure-activity Relationship (QSAR) study of Liver Toxic Drugs". International Association of Biologicals and Computational Digest. 1: 63–71. doi:10.56588/iabcd.v1i1.17. eISSN 2583-3995.
  5. ^ Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-03.
  6. ^ Pecknold JC, Ban TA, Lehmann HE, Climan M (June 1975). "Clomacran in the treatment of schizophrenic patients: a comparison of two assessment methods". International Journal of Clinical Pharmacology and Biopharmacy. 11 (4): 299–303. PMID 1099021.
  7. ^ "Clomacran". PubChem. U.S. National Library of Medicine. Retrieved 2023-08-25.
  8. ^ Andrews EB, Moore N, eds. (2014). Mann's Pharmacovigilance (1st ed.). Wiley. doi:10.1002/9781118820186. ISBN 978-0-470-67104-7.
  9. ^ Zirkle Charles L, U.S. patent 3,131,190 (1964 to Smith Kline French Lab).
  10. ^ E Anderson & H Graboyes, U.S. patent 3,781,358 (1973 to SmithKline Beecham Corp).
  11. ^ Elvin L Anderson & Harold Graboyes, U.S. patent 3,692,834 (1972 to Smith Kline and French Laboratories Ltd, GlaxoSmithKline LLC SmithKline Beecham Corp).
  12. ^ Elvin L Anderson & Harold Graboyes, U.S. patent 3,919,312 (1975 to SmithKline Beecham Corp).
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