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16α-Iodo-E2

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(Redirected from16α-Iodoestradiol)
Chemical compound
Pharmaceutical compound
16α-Iodo-E2
Identifiers
  • (8R,9S,13S,14S,16R,17R)-16-iodo-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol
CAS Number
PubChemCID
ChemSpider
ChEMBL
CompTox Dashboard(EPA)
Chemical and physical data
FormulaC18H23IO2
Molar mass398.284 g·mol−1
3D model (JSmol)
  • C[C@]12CC[C@H]3[C@H]([C@@H]1C[C@H]([C@@H]2O)I)CCC4=C3C=CC(=C4)O
  • InChI=1S/C18H23IO2/c1-18-7-6-13-12-5-3-11(20)8-10(12)2-4-14(13)15(18)9-16(19)17(18)21/h3,5,8,13-17,20-21H,2,4,6-7,9H2,1H3/t13-,14-,15+,16-,17+,18+/m1/s1
  • Key:SSYGGPAGDDGXAF-ZXXIGWHRSA-N

16α-Iodo-E2, or16α-iodoestradiol, is asynthetic,steroidal, potentestrogen with slight preference for theERα over theERβ that is used inscientific research.[1][2] The KD of 16α-iodo-E2 for the ERα is 0.6 nM and for the ERβ is 0.24 nM, a 4-fold difference inaffinity, whereasestradiol is considered to have similar affinity for the two receptor subtypes.[2] Unlike the case of the much weakerestriol (16α-hydroxyestradiol), 16α-iodo-E2 is considered to be equipotent with estradiol in terms of estrogenic activity.[3]Radiolabeled [16α-125I]iodo-E2 has been employed inimaging to study theestrogen receptor.[4]

See also

[edit]

References

[edit]
  1. ^Manas ES, Unwalla RJ, Xu ZB, Malamas MS, Miller CP, Harris HA, Hsiao C, Akopian T, Hum WT, Malakian K, Wolfrom S, Bapat A, Bhat RA, Stahl ML, Somers WS, Alvarez JC (2004). "Structure-based design of estrogen receptor-beta selective ligands".J. Am. Chem. Soc.126 (46):15106–19.doi:10.1021/ja047633o.PMID 15548008.
  2. ^abChen GG, Vlantis AC, Zeng Q, van Hasselt CA (2008). "Regulation of cell growth by estrogen signaling and potential targets in thyroid cancer".Curr Cancer Drug Targets.8 (5):367–77.doi:10.2174/156800908785133150.PMID 18690843.
  3. ^Hochberg RB, Zielinski JE, Duax WL, Strong P (1986). "The molecular structure of 16 alpha-iodo-17 beta-estradiol, a high affinity ligand for the estrogen receptor".J. Steroid Biochem.25 (5A):615–8.doi:10.1016/0022-4731(86)90002-6.PMID 3795941.
  4. ^Cummins CH (1993). "Radiolabeled steroidal estrogens in cancer research".Steroids.58 (6):245–59.doi:10.1016/0039-128x(93)90069-y.PMID 8212070.S2CID 29080385.
ERTooltip Estrogen receptor
Agonists
Mixed
(SERMsTooltip Selective estrogen receptor modulators)
Antagonists
GPERTooltip G protein-coupled estrogen receptor
Agonists
Antagonists
Unknown


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