Tiospirone

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Tiospirone
Tiospirone.png
Systematic (IUPAC) name
8-[4-[4-(1,2-benzothiazol-3-yl)piperazin-1-yl]butyl]-8-azaspiro[4.5]decane-7,9-dione
Clinical data
Legal status
?
Pharmacokinetic data
Metabolism Hepatic
Half-life 1.4 hours
Excretion Urine
Identifiers
CAS number 87691-91-6
ATC code None
PubChem CID 55752
IUPHAR ligand 101
ChemSpider 50348
UNII 35C6UMO5SR YesY
ChEMBL CHEMBL35057
Chemical data
Formula C24H32N4O2S 
Mol. mass 440.60 g/mol

Tiospirone (BMY-13,859), also sometimes called tiaspirone or tiosperone, is an atypical antipsychotic of the azapirone class.[1] It was investigated as a treatment for schizophrenia in the late 1980s and was found to have an effectiveness equivalent to those of typical antipsychotics in clinical trials but without causing extrapyramidal side effects.[2][3][4][5] However, development was halted and it was not marketed. Perospirone, another azapirone derivative with antipsychotic properties, was synthesized and assayed several years after tiospirone.[6] It was found to be both more potent and more selective in comparison and was commercialized instead.[6]

Tiospirone acts as a 5-HT1A receptor partial agonist, 5-HT2A, 5-HT2C, and 5-HT7 receptor inverse agonist, and D2, D4, and α1-adrenergic receptor antagonist.[7][8][9][10][11][12]

Binding profile[13]

Receptor Ki (nM)
5-HT2A 0.06
5-HT2C 9.73
5-HT6 950
5-HT7 0.64
M1 630
M2 180
M3 1290
M4 480
M5 3900
D2 0.5
D4 13.6

Synthesis[edit]

Sequential reaction of the disulfide from thiosalicylic acid with thionyl chloride in chlorine leads to the intermediate dichloride.

Tiospirone synthesis:[14]

See also[edit]

References[edit]

  1. ^ Yevich JP, New JS, Smith DW, et al. (March 1986). "Synthesis and biological evaluation of 1-(1,2-benzisothiazol-3-yl)- and (1,2-benzisoxazol-3-yl)piperazine derivatives as potential antipsychotic agents". Journal of Medicinal Chemistry 29 (3): 359–69. doi:10.1021/jm00153a010. PMID 2869146. 
  2. ^ Jain AK, Kelwala S, Moore N, Gershon S (April 1987). "A controlled clinical trial of tiaspirone in schizophrenia". International Clinical Psychopharmacology 2 (2): 129–33. doi:10.1097/00004850-198704000-00006. PMID 2885367. 
  3. ^ Moore NC, Meyendorff E, Yeragani V, LeWitt PA, Gershon S (April 1987). "Tiaspirone in schizophrenia". Journal of Clinical Psychopharmacology 7 (2): 98–101. doi:10.1097/00004714-198704000-00010. PMID 3294920. 
  4. ^ Borison RL, Sinha D, Haverstock S, McLarnon MC, Diamond BI (1989). "Efficacy and safety of tiospirone vs. haloperidol and thioridazine in a double-blind, placebo-controlled trial". Psychopharmacology Bulletin 25 (2): 190–3. PMID 2574893. 
  5. ^ Nasrallah, Henry A.; Shriqui, Christian L (1995). Contemporary issues in the treatment of schizophrenia. Washington, DC: American Psychiatric Press. p. 313. ISBN 0-88048-681-3. 
  6. ^ a b Ishizumi K, Kojima A, Antoku F, Saji I, Yoshigi M (December 1995). "Succinimide derivatives. II. Synthesis and antipsychotic activity of N-[4-[4-(1,2-benzisothiazol-3-yl)-1-piperazinyl]butyl]-1,2-cis- cyclohexanedicarboximide (SM-9018) and related compounds". Chemical & Pharmaceutical Bulletin 43 (12): 2139–51. doi:10.1248/cpb.43.2139. PMID 8582016. 
  7. ^ Sumiyoshi T, Suzuki K, Sakamoto H, et al. (February 1995). "Atypicality of several antipsychotics on the basis of in vivo dopamine-D2 and serotonin-5HT2 receptor occupancy". Neuropsychopharmacology 12 (1): 57–64. doi:10.1016/0893-133X(94)00064-7. PMID 7766287. 
  8. ^ Roth BL, Tandra S, Burgess LH, Sibley DR, Meltzer HY (August 1995). "D4 dopamine receptor binding affinity does not distinguish between typical and atypical antipsychotic drugs". Psychopharmacology 120 (3): 365–8. doi:10.1007/BF02311185. PMID 8524985. 
  9. ^ Weiner DM, Burstein ES, Nash N, et al. (October 2001). "5-hydroxytryptamine2A receptor inverse agonists as antipsychotics". The Journal of Pharmacology and Experimental Therapeutics 299 (1): 268–76. PMID 11561089. 
  10. ^ Herrick-Davis K, Grinde E, Teitler M (October 2000). "Inverse agonist activity of atypical antipsychotic drugs at human 5-hydroxytryptamine2C receptors". The Journal of Pharmacology and Experimental Therapeutics 295 (1): 226–32. PMID 10991983. 
  11. ^ Rauly-Lestienne I, Boutet-Robinet E, Ailhaud MC, Newman-Tancredi A, Cussac D (October 2007). "Differential profile of typical, atypical and third generation antipsychotics at human 5-HT7a receptors coupled to adenylyl cyclase: detection of agonist and inverse agonist properties". Naunyn-Schmiedeberg's Archives of Pharmacology 376 (1–2): 93–105. doi:10.1007/s00210-007-0182-6. PMID 17786406. 
  12. ^ Newman-Tancredi A, Assié MB, Leduc N, Ormière AM, Danty N, Cosi C (September 2005). "Novel antipsychotics activate recombinant human and native rat serotonin 5-HT1A receptors: affinity, efficacy and potential implications for treatment of schizophrenia". The International Journal of Neuropsychopharmacology / Official Scientific Journal of the Collegium Internationale Neuropsychopharmacologicum (CINP) 8 (3): 341–56. doi:10.1017/S1461145704005000. PMID 15707540. 
  13. ^ Roth, BL; Driscol, J (12 January 2011). "PDSP Ki Database". Psychoactive Drug Screening Program (PDSP). University of North Carolina at Chapel Hill and the United States National Institute of Mental Health. Retrieved 3 December 2013. 
  14. ^ Ishizumi, K.; Kojima, A.; Antoku, F. (1991). "Synthesis and Anxiolytic Activity of N-Substituted Cyclic Imides(1R*,2S*,3R*,4S*)-N-(4-(4-(2-Pyrimidinyl)-1-piperazinyl)butyl)-2,3-bicyclo(2.2.1)heptanedicarboximide(Tandospirone) and Related Compounds". Chemical & Pharmaceutical Bulletin 39 (9): 2288. doi:10.1248/cpb.39.2288.  edit