5-I-R91150

5-I-R91150
Identifiers
	IUPAC name 4-amino-N-[1-[3-(4-fluorophenoxy)propyl]-4-methyl-4-piperidinyl]-5-iodo-2-methoxybenzamide;
CAS Number	155928-24-8 ;
PubChem CID	132997;
ChemSpider	117371 ;
UNII	T0W602CN0W;
CompTox Dashboard (EPA)	DTXSID90165995 ;
Chemical and physical data
Formula	C23H29FIN3O2
Molar mass	525.398 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES Ic1cc(c(OC)cc1N)C(=O)NC3(CCN(CCCc2ccc(F)cc2)CC3)C;
	InChI InChI=1S/C23H29FIN3O2/c1-23(27-22(29)18-14-19(25)20(26)15-21(18)30-2)9-12-28(13-10-23)11-3-4-16-5-7-17(24)8-6-16/h5-8,14-15H,3-4,9-13,26H2,1-2H3,(H,27,29) ; Key:MIPHZURHMMOGLS-UHFFFAOYSA-N ;
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5-I-R91150 (or R93274) is a compound that acts as a potent and selective antagonist of 5-HT_2A receptors.[1] Its main application is as its iodine-123 radiolabeled form, in which it can be used in SPECT scanning[2] in human neuroimaging studies, to examine the distribution of the 5-HT_2A receptor subtype in the brain, e.g. with respect to sex and age[3] and in adults with Asperger syndrome[4] or Alzheimer's disease.[5]

An alternative 5-HT_2A receptor ligand also used in neuroimaging is altanserin.

References

Peremans K, Audenaert K, Coopman F, Jacobs F, Dumont F, Slegers G, et al. (2003). "Regional binding index of the radiolabeled selective 5-HT2A antagonist 123I-5-I-R91150 in the normal canine brain imaged with single photon emission computed tomography". Veterinary Radiology & Ultrasound. 44 (3): 344–51. doi:10.1111/j.1740-8261.2003.tb00467.x. PMID 12816380.
Busatto GF, Pilowsky LS, Costa DC, Mertens J, Terriere D, Ell PJ, et al. (February 1997). "Initial evaluation of 123I-5-I-R91150, a selective 5-HT2A ligand for single-photon emission tomography, in healthy human subjects". European Journal of Nuclear Medicine. 24 (2): 119–24. doi:10.1007/BF02439542. PMID 9021107.
Baeken C, D'haenen H, Flamen P, Mertens J, Terriere D, Chavatte K, et al. (December 1998). "123I-5-I-R91150, a new single-photon emission tomography ligand for 5-HT2A receptors: influence of age and gender in healthy subjects". European Journal of Nuclear Medicine. 25 (12): 1617–22. doi:10.1007/s002590050339. PMID 9871092.
Murphy DG, Daly E, Schmitz N, Toal F, Murphy K, Curran S, et al. (May 2006). "Cortical serotonin 5-HT2A receptor binding and social communication in adults with Asperger's syndrome: an in vivo SPECT study". The American Journal of Psychiatry. 163 (5): 934–6. doi:10.1176/appi.ajp.163.5.934. PMID 16648340.
Versijpt J, Van Laere KJ, Dumont F, Decoo D, Vandecapelle M, Santens P, et al. (2003). "Imaging of the 5-HT2A system: age-, gender-, and Alzheimer's disease-related findings". Neurobiology of Aging. 24 (4): 553–61. doi:10.1016/S0197-4580(02)00137-9. PMID 12714112.

Catafau AM, Danus M, Bullich S, Llop J, Perich J, Cunningham VJ, et al. (June 2006). "Characterization of the SPECT 5-HT2A receptor ligand 123I-R91150 in healthy volunteers: Part 1--pseudoequilibrium interval and quantification methods". Journal of Nuclear Medicine. 47 (6): 919–28. PMID 16741300.
Catafau AM, Danus M, Bullich S, Nucci G, Llop J, Abanades S, et al. (June 2006). "Characterization of the SPECT 5-HT2A receptor ligand 123I-R91150 in healthy volunteers: part 2--ketanserin displacement". Journal of Nuclear Medicine. 47 (6): 929–37. PMID 16741301.

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[1] Peremans K, Audenaert K, Coopman F, Jacobs F, Dumont F, Slegers G, et al. (2003). "Regional binding index of the radiolabeled selective 5-HT2A antagonist 123I-5-I-R91150 in the normal canine brain imaged with single photon emission computed tomography". Veterinary Radiology & Ultrasound. 44 (3): 344–51. doi:10.1111/j.1740-8261.2003.tb00467.x. PMID 12816380.

[2] Busatto GF, Pilowsky LS, Costa DC, Mertens J, Terriere D, Ell PJ, et al. (February 1997). "Initial evaluation of 123I-5-I-R91150, a selective 5-HT2A ligand for single-photon emission tomography, in healthy human subjects". European Journal of Nuclear Medicine. 24 (2): 119–24. doi:10.1007/BF02439542. PMID 9021107.

[3] Baeken C, D'haenen H, Flamen P, Mertens J, Terriere D, Chavatte K, et al. (December 1998). "123I-5-I-R91150, a new single-photon emission tomography ligand for 5-HT2A receptors: influence of age and gender in healthy subjects". European Journal of Nuclear Medicine. 25 (12): 1617–22. doi:10.1007/s002590050339. PMID 9871092.

[4] Murphy DG, Daly E, Schmitz N, Toal F, Murphy K, Curran S, et al. (May 2006). "Cortical serotonin 5-HT2A receptor binding and social communication in adults with Asperger's syndrome: an in vivo SPECT study". The American Journal of Psychiatry. 163 (5): 934–6. doi:10.1176/appi.ajp.163.5.934. PMID 16648340.

[5] Versijpt J, Van Laere KJ, Dumont F, Decoo D, Vandecapelle M, Santens P, et al. (2003). "Imaging of the 5-HT2A system: age-, gender-, and Alzheimer's disease-related findings". Neurobiology of Aging. 24 (4): 553–61. doi:10.1016/S0197-4580(02)00137-9. PMID 12714112.

5-I-R91150

References

Further reading