Lometraline (INN; developmental code name CP-14,368) is a drug and an aminotetralin derivative.[1] A structural modification of tricyclic neuroleptics, lometraline was originally patented by Pfizer as an antipsychotic, tranquilizer, and antiparkinsonian agent.[2][3] However, it was instead later studied as a potential antidepressant and/or anxiolytic agent, though clinical studies revealed no psychoactivity at the doses used and further investigation was suspended.[1][4][5] Further experimental modifications of the chemical structure of lometraline resulted in the discovery of tametraline, a potent inhibitor of the reuptake of dopamine and norepinephrine, which in turn led to the discovery of the now widely popular antidepressant sertraline, a selective serotonin reuptake inhibitor (SSRI).[6]

Lometraline
Clinical data
Other namesN,N-dimethyl-8-chloro-5-methoxy-1-aminotetralin
ATC code
  • None
Identifiers
  • 8-chloro-5-methoxy-N,N-dimethyl-1,2,3,4-tetrahydro-1-naphthalenamine
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
ChEMBL
Chemical and physical data
FormulaC13H18ClNO
Molar mass239.74 g·mol−1
3D model (JSmol)
  • Clc1ccc(OC)c2c1C(N(C)C)CCC2
  • InChI=1S/C13H18ClNO/c1-15(2)11-6-4-5-9-12(16-3)8-7-10(14)13(9)11/h7-8,11H,4-6H2,1-3H3
  • Key:MTWNWMGGMZUIMZ-UHFFFAOYSA-N

The precursor ketone can undergo a Mannich reaction with pyrrolidine to yield CID:12348935. This specific agent had analgesic activity in the same range as morphine and was not antagonized by naloxone.[7][8]

References edit

  1. ^ a b Park S, Gershon S, Angrist B, Floyd A (February 1972). "Evaluation of an aminotetraline, CP 14.368, as an antidepressant". Current Therapeutic Research, Clinical and Experimental. 14 (2): 65–70. PMID 4401233.
  2. ^ Drake E (27 January 1994). Saunders pharmaceutical word book, 1994. W.B. Saunders Co. ISBN 978-0-7216-5254-2. Retrieved 27 April 2012.
  3. ^ United States. Patent Office (1972). "Lometraline: tranquillizer, anti-parkinson agent". Official gazette of the United States Patent Office: Patents. The Office. Retrieved 27 April 2012.
  4. ^ McMahon FG (1974). Psychopharmacological agents. Futura Pub. Co. ISBN 978-0-87993-052-3. Retrieved 27 April 2012.
  5. ^ Bayerische Julius-Maximilians-Universität Würzburg. Arbeitskreis für Schlafforschung (1973). The Nature of sleep. Die Natur des Schlafes. La nature du sommeil: International symposium, Würzburg, 23-26.9.1971. G. Fischer. ISBN 978-3-437-10295-0. Retrieved 27 April 2012.
  6. ^ Koe BK, Harbert CA, Sarges R, Weissman A, Welch WM (2006). "Discovery of sertraline (Zoloft®)". Archived from the original on 2014-12-30. Retrieved 2012-04-27.
  7. ^ Welch WM, Harbert CA, Sarges R, Stratten WP, Weissman A (May 1977). "Analgesic and tranquilizing activity of 5,8-disubstituted 1-tetralone Mannich bases". Journal of Medicinal Chemistry. 20 (5): 699–705. doi:10.1021/jm00215a016. PMID 853506.
  8. ^ Welch WM, Plattner JJ, Stratten WP, Harbert CA (March 1978). "Analgesic and tranquilizing activity of 5,8-disubstituted 2-aminomethyl-3,4-dihydronaphthalenes". Journal of Medicinal Chemistry. 21 (3): 257–63. doi:10.1021/jm00201a004. PMID 628000.