A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Names | |
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Preferred IUPAC name
3-(2-Chlorophenothiazin-10-yl)-N,N-diethylpropan-1-amine | |
Other names
RP-4909
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Identifiers | |
3D model (JSmol)
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ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.001.373 |
KEGG | |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C19H23ClN2S | |
Molar mass | 346.91732 g/mol |
Pharmacology | |
N05AA07 (WHO) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
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Chlorproethazine, sold under the brand name Neuriplege, is a drug of the phenothiazine group described as a muscle relaxant or tranquilizer which is or has been marketed in Europe as a topical cream for the treatment of muscle pain.[1][2][3][4][5] It has been associated with photoallergic contact dermatitis.[6][7]
Synthesis
Chlorproethazine can be synthesized from a diphenylsulfide derivative. The general scheme is sufficiently flexible to permit the interchange of the order of some of the steps.
Thus alkylation of 2-(2-bromo-phenylsulfanyl)-5-chloro-aniline (1) with 3-chloro-1-diethylaminopropane (2) leads to the intermediate (3). Ring closure as above by nucleophilic aromatic displacement leads to the antipsychotic drug chlorproethazine (4).
The last step uses copper powder and is a form of the Ullmann condensation (i.e. the Goldberg reaction).
References
- ^ Elks J (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 264–. ISBN 978-1-4757-2085-3.
- ^ Index Nominum 2000: International Drug Directory. Taylor & Francis. 2000. pp. 222–. ISBN 978-3-88763-075-1.
- ^ Morton IK, Hall JM (6 December 2012). Concise Dictionary of Pharmacological Agents: Properties and Synonyms. Springer Science & Business Media. pp. 74–. ISBN 978-94-011-4439-1.
- ^ William Andrew Publishing (22 October 2013). Pharmaceutical Manufacturing Encyclopedia. Elsevier. pp. 989–. ISBN 978-0-8155-1856-3.
- ^ "Chlorproethazine". Drugs.com. Archived from the original on 27 September 2017.
- ^ Rietschel RL, Fowler JF, Fisher AA (2008). Fisher's Contact Dermatitis. PMPH-USA. pp. 249–. ISBN 978-1-55009-378-0.
- ^ Johansen JD, Frosch PJ, Lepoittevin JP (29 September 2010). Contact Dermatitis. Springer Science & Business Media. pp. 373–. ISBN 978-3-642-03827-3.
- ^ US 2769002, Buisson P, Gailliot P, "Preparation of Phenothiazine Compounds", issued 30 October 1956, assigned to Rhône-Poulenc
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