Oxatomide
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| Systematic (IUPAC) name | |
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1-{3-[4-(diphenylmethyl)piperazin-1-yl]propyl}-1,3-dihydro-2H-benzimidazol-2-one
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| Clinical data | |
| Trade names | Tinset, Cedlips, Atoxan |
| AHFS/Drugs.com | International Drug Names |
| Routes of administration |
Oral |
| Legal status | |
| Legal status |
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| Identifiers | |
| CAS Number | 60607-34-3 |
| ATC code | R06AE06 (WHO) |
| PubChem | CID 4615 |
| ChemSpider | 4454 |
| UNII | J31IL9Z2EE |
| KEGG | D01773 |
| ChEMBL | CHEMBL13828 |
| Chemical data | |
| Formula | C27H30N4O |
| Molar mass | 426.553 g/mol |
| 3D model (Jmol) | Interactive image |
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Oxatomide (R35443) is a first-generation antihistamine of the diphenylmethylpiperazine (benzhydrylpiperazine) class.[1] It was discovered at Janssen Pharmaceutica in 1975. Oxatomide lacks any anticholinergic effects.[1] In addition to its H1 receptor antagonism, it also possesses antiserotonergic actions.[1]
Synthesis[edit]
Oxatomide synthesis:[2]
Reaction of 2-Benzimidazolinone with isopropenyl acetate leads to the singly protected imidazolone derivative (2). Alkylation of this with 3-chloro-1-bromopropane affords the functionalized derivative (3). Alkylation of the monobenzhydryl derivative of piperazine (4) with 3 gives oxatomide (5), after hydrolytic removal of the protecting group.
See also[edit]
References[edit]
- ^ a b c Ohmori K, Ishii H, Nito M, Shuto K, Nakamizo N (May 1983). "[Pharmacological studies on oxatomide (KW-4354). (7) Antagonistic effects on chemical mediators]". Nippon Yakurigaku Zasshi. Folia Pharmacologica Japonica (in Japanese). 81 (5): 399–409. doi:10.1254/fpj.81.399. PMID 6138301.
- ^ J. Vandenberk et al., DE 2714437 ; eidem, U.S. Patent 4,250,176 (1977, 1981 both to Janssen).
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| Simple piperazines (no additional rings) |
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| Phenylpiperazines |
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| Benzylpiperazines | |
| Diphenylalkylpiperazines (benzhydrylalkylpiperazines) |
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| Pyrimidinylpiperazines | |
| Pyridinylpiperazines | |
| Benzo(iso)thiazolylpiperazines | |
| Tricyclics (piperazine attached via side chain) |
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| This drug article relating to the respiratory system is a stub. You can help Wikipedia by expanding it. |
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