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[[File:Clomacran synthesis.svg|thumb|center|500px|Patents:<ref>Zirkle Charles L, {{US patent|3131190}} (1964 to Smith Kline French Lab).</ref><ref>E Anderson & H Graboyes, {{US patent|3781358}} (1973 to SmithKline Beecham Corp).</ref><ref>Elvin L Anderson & Harold Graboyes, {{US patent|3692834}} (1972 to Smith Kline and French Laboratories Ltd, GlaxoSmithKline LLC SmithKline Beecham Corp).</ref><ref>Elvin L Anderson & Harold Graboyes, {{US patent|3919312}} (1975 to SmithKline Beecham Corp).</ref>]]
[[File:Clomacran synthesis.svg|thumb|center|500px|Patents:<ref>Zirkle Charles L, {{US patent|3131190}} (1964 to Smith Kline French Lab).</ref><ref>E Anderson & H Graboyes, {{US patent|3781358}} (1973 to SmithKline Beecham Corp).</ref><ref>Elvin L Anderson & Harold Graboyes, {{US patent|3692834}} (1972 to Smith Kline and French Laboratories Ltd, GlaxoSmithKline LLC SmithKline Beecham Corp).</ref><ref>Elvin L Anderson & Harold Graboyes, {{US patent|3919312}} (1975 to SmithKline Beecham Corp).</ref>]]


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 the tranquilizer, clomacran ('''5''').
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 ==
== References ==

Revision as of 03:19, 23 January 2024

Clomacran
Clinical data
Trade namesDevryl, Olaxin,[1] Develar[2][3]
ATC code
Legal status
Legal status
Identifiers
  • 3-(2-chloro-9,10-dihydroacridin-9-yl)-N,N-dimethylpropan-1-amine
CAS Number
PubChem CID
ChemSpider
UNII
ChEBI
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC18H21ClN2
Molar mass300.83 g·mol−1
3D model (JSmol)
Density1.120 g/cm3 [1]
  • CN(C)CCCC1C2=CC=CC=C2NC3=C1C=C(C=C3)Cl
  • InChI=1S/C18H21ClN2/c1-21(2)11-5-7-14-15-6-3-4-8-17(15)20-18-10-9-13(19)12-16(14)18/h3-4,6,8-10,12,14,20H,5,7,11H2,1-2H3 checkY
  • Key:JFRLWWDJCFYFSU-UHFFFAOYSA-N checkY

Clomacran is an antipsychotic drug of the acridine class, developed in the 1970s[2] by the pharmaceutical company Smith, Kline & French 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.[5][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. ^ 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.
  5. ^ 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.
  6. ^ Pecknold, J. C.; Ban, T. A.; Lehmann, H. E.; Climan, M. (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. ISSN 0340-0026. 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).