Structural Formula Vector Image
Title: Buspirone
CAS Registry Number: 36505-84-7
CAS Name: 8-[4-[4-(2-Pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione
Molecular Formula: C21H31N5O2
Molecular Weight: 385.50
Percent Composition: C 65.43%, H 8.11%, N 18.17%, O 8.30%
Literature References: Non-benzodiazepine anxiolytic; 5-hydroxytryptamine (5-HT1) receptor agonist. Prepn: Y. H. Wu et al., J. Med. Chem. 15, 477 (1972); Y. H. Wu, J. W. Rayburn, DE 2057845 (1971 to Bristol-Myers); eidem, US 3717634 (1973 to Mead-Johnson). Pharmacology: L. E. Allen et al., Arzneim.-Forsch. 24, 917 (1974). Comparison with diazepam in treatment of anxiety: H. L. Goldberg, R. J. Finnerty, Am. J. Psychiatry 136, 1184 (1979); A. F. Jacobson et al., Pharmacotherapy 5, 290 (1985). Nonsynergistic effect with alcohol: T. Seppala et al., Clin. Pharmacol. Ther. 32, 201 (1982). Disposition and metabolism: S. Caccia et al., Xenobiotica 13, 147 (1983). Series of articles on chemistry, pharmacology, addictive potential, and clinical trials: J. Clin. Psychiatry 43, pp 1-116 (1982); on pharmacology, safety and clinical comparison with clorazepate: Am. J. Med. 80, Suppl. 3B, 1-51 (1986). Review of pharmacology and therapeutic efficacy: K. L. Goa, A. Ward, Drugs 32, 114-129 (1986). Review: M. W. Jann, Pharmacotherapy 8, 100-116 (1988); D. P. Taylor, FASEB J. 2, 2445-2452 (1988).
Derivative Type: Hydrochloride
CAS Registry Number: 33386-08-2
Trademarks: Ansial (Vita); Ansiced (Abello); Axoren (Glaxo Wellcome); Bespar (BMS); Buspar (BMS); Buspimen (Menarini); Buspinol (Zdravlje); Buspisal (Lesvi); Narol (Almirall)
Molecular Formula: C21H31N5O2.HCl
Molecular Weight: 421.96
Percent Composition: C 59.77%, H 7.64%, N 16.60%, O 7.58%, Cl 8.40%
Properties: Crystals from abs ethanol, mp 201.5-202.5°. LD50 i.p. in rats: 136 mg/kg (Allen).
Melting point: mp 201.5-202.5°
Toxicity data: LD50 i.p. in rats: 136 mg/kg (Allen)
Therap-Cat: Anxiolytic.
Keywords: Anxiolytic; Arylpiperazines; Serotonin Receptor Agonist.

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