en Azacyclonol

Azacyclonol
Clinical data
Other names	MER-17; MDL-4829; Diphenylmethanolpiperidine
Routes of; administration	Oral
ATC code	none;
Legal status
Legal status	BR: Class C1 (Other controlled substances); In general: ℞ (Prescription only);
Identifiers
	IUPAC name Diphenyl(piperidin-4-yl)methanol;
CAS Number	115-46-8 ; 1798-50-1 (HCl);
PubChem CID	15723;
ChemSpider	14952 ;
UNII	2MMR990PEM;
ChEMBL	ChEMBL127508 ;
CompTox Dashboard (EPA)	DTXSID2045280 ;
ECHA InfoCard	100.003.720
Chemical and physical data
Formula	C18H21NO
Molar mass	267.372 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES OC(c1ccccc1)(c2ccccc2)C3CCNCC3;
	InChI InChI=1S/C18H21NO/c20-18(15-7-3-1-4-8-15,16-9-5-2-6-10-16)17-11-13-19-14-12-17/h1-10,17,19-20H,11-14H2 ; Key:ZMISODWVFHHWNR-UHFFFAOYSA-N ;
	(what is this?) (verify)

Azacyclonol (trade names Ataractan, Calmeran, Frenoton, Frenquel, Psychosan), also known as γ-pipradrol, is a drug which is an ataractive; an agent which diminishes hallucinations in psychotic individuals.^[2]^[3] It has also been called a tranquilizer and antipsychotic, though these definitions are not accurate as it does not actually possess such properties. Despite being a positional isomer of pipradrol, it is not a psychostimulant, and instead has mild depressant effects.^[2]^[4]

The drug was introduced in Europe in the mid-1950s for the treatment of schizophrenia likely because it was found to attenuate the subjective psychedelic effects of LSD and mescaline in humans.^[2]^[5] However, due to poor and mixed clinical effectiveness,^[5] it never gained widespread acceptance and was eventually discontinued.

Azacyclonol is also known as diphenylmethanolpiperidine and is the parent structure of the antihistamines fexofenadine and terfenadine. Terfenadine produces azacyclonol as a major active metabolite.^[6]

It is made by the organometallic addition of 4-bromopyridine to benzophenone, followed by catalytic hydrogenation of the pyridine heteroaromatic ring system to the corresponding piperidine.^[7]

References

^ 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 2023-08-16.
^ ^a ^b ^c BRAUN DL, BROWN BB, FELDMAN RG (October 1956). "The pharmacologic activity of alpha-(4-piperidyl)-benzhydrol hydrochloride (azacyclonol hydrochloride); an ataractive agent". The Journal of Pharmacology and Experimental Therapeutics. 118 (2): 153–61. PMID 13368052. Archived from the original on 2019-12-08. Retrieved 2010-04-16.
^ Swiss Pharmaceutical Society (2000). Index Nominum 2000: International Drug Directory (Book with CD-ROM). Boca Raton: Medpharm Scientific Publishers. ISBN 3-88763-075-0.
^ FARRANT J (June 1963). "Interactions between cocaine, tyramine and noradrenaline at the noradrenaline store". British Journal of Pharmacology and Chemotherapy. 20 (3): 540–9. doi:10.1111/j.1476-5381.1963.tb01491.x. PMC 1703814. PMID 13944436.
^ ^a ^b FORSTER W, HENDERSON AL (January 1957). "A clinical study of Frenquel (alpha (4-piperidyl) benzhydrol hydrochloride) in chronic schizophrenia". Canadian Medical Association Journal. 76 (2): 97–101. PMC 1823487. PMID 13383414.
^ Martens J (April 1996). "Determination of the terfenadine metabolite azacyclonol in human serum using gas chromatography-mass spectrometry". Journal of Chromatography B. 678 (2): 349–53. doi:10.1016/0378-4347(95)00561-7. PMID 8738042.
^ Campen Jr Marcus G Van, Pogge Raymond C, Schumann Edward L; Wm S Merrell Co; U.S. patent 2,804,422 (1957).

[1] 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 2023-08-16.

[pmid13368052-2] BRAUN DL, BROWN BB, FELDMAN RG (October 1956). "The pharmacologic activity of alpha-(4-piperidyl)-benzhydrol hydrochloride (azacyclonol hydrochloride); an ataractive agent". The Journal of Pharmacology and Experimental Therapeutics. 118 (2): 153–61. PMID 13368052. Archived from the original on 2019-12-08. Retrieved 2010-04-16.

[isbn3-88763-075-0-3] Swiss Pharmaceutical Society (2000). Index Nominum 2000: International Drug Directory (Book with CD-ROM). Boca Raton: Medpharm Scientific Publishers. ISBN 3-88763-075-0.

[pmid13944436-4] FARRANT J (June 1963). "Interactions between cocaine, tyramine and noradrenaline at the noradrenaline store". British Journal of Pharmacology and Chemotherapy. 20 (3): 540–9. doi:10.1111/j.1476-5381.1963.tb01491.x. PMC 1703814. PMID 13944436.

[pmid13383414-5] FORSTER W, HENDERSON AL (January 1957). "A clinical study of Frenquel (alpha (4-piperidyl) benzhydrol hydrochloride) in chronic schizophrenia". Canadian Medical Association Journal. 76 (2): 97–101. PMC 1823487. PMID 13383414.

[pmid8738042-6] Martens J (April 1996). "Determination of the terfenadine metabolite azacyclonol in human serum using gas chromatography-mass spectrometry". Journal of Chromatography B. 678 (2): 349–53. doi:10.1016/0378-4347(95)00561-7. PMID 8738042.

[7] Campen Jr Marcus G Van, Pogge Raymond C, Schumann Edward L; Wm S Merrell Co; U.S. patent 2,804,422 (1957).

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Azacyclonol

References

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