Chemistry:7α-Methylestradiol

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Short description: Chemical compound
7α-Methylestradiol
7α-Methylestradiol.svg
Clinical data
Other names7α-Methyl-E2; 7α-Me-E2; 7α-Methylestra-1,3,5(10)-triene-3,17β-diol
Drug classEstrogen
Identifiers
CAS Number
PubChem CID
UNII
Chemical and physical data
FormulaC19H26O2
Molar mass286.415 g·mol−1
3D model (JSmol)

7α-Methylestradiol (7α-Me-E2), also known as 7α-methylestra-1,3,5(10)-triene-3,17β-diol, is a synthetic estrogen and an active metabolite of the androgen/anabolic steroids trestolone/Methandienone.[1][2][3] It is considered to be responsible for the estrogenic activity of trestolone.[2][3] The compound shows about the same affinity for the estrogen receptor as estradiol.[1]

Relative affinities (%) of 7α-methylestradiol and related steroids[1][4][5][6]
Compound PR AR ER GR MR SHBG CBG
Estradiol 2.6 7.9 100 0.6 0.13 8.7 <0.1
7α-Methylestradiol 1–3 15–25 101 <1 <1 ? ?
Trestolone 50–75 100–125 ? <1 ? ? ?
Values are percentages (%). Reference ligands (100%) were progesterone for the PR, testosterone for the AR, E2 for the ER, DEXA for the GR, aldosterone for the MR, DHT for SHBG, and cortisol for CBG.

See also

References

  1. 1.0 1.1 1.2 "Receptor Binding as a Tool in the Development of New Bioactive Steroids". Drug Design. 1979. pp. 169–214. doi:10.1016/B978-0-12-060308-4.50010-X. ISBN 9780120603084. https://books.google.com/books?id=bhAlBQAAQBAJ&pg=PA169. 
  2. 2.0 2.1 "Comparison of 7α-methyl-19-nortestosterone effectiveness alone or combined with progestins on androgen receptor mediated-transactivation". Reproduction 143 (2): 211–219. February 2012. doi:10.1530/REP-11-0171. PMID 22065861. 
  3. 3.0 3.1 "Dimethandrolone (7alpha,11beta-dimethyl-19-nortestosterone) and 11beta-methyl-19-nortestosterone are not converted to aromatic A-ring products in the presence of recombinant human aromatase". The Journal of Steroid Biochemistry and Molecular Biology 110 (3–5): 214–222. June 2008. doi:10.1016/j.jsbmb.2007.11.009. PMID 18555683. 
  4. "Towards the mapping of the progesterone and androgen receptors". Journal of Steroid Biochemistry 27 (1–3): 255–269. 1987. doi:10.1016/0022-4731(87)90317-7. PMID 3695484. 
  5. "Unique steroid congeners for receptor studies". Cancer Research 38 (11 Pt 2): 4186–4198. November 1978. PMID 359134. http://cancerres.aacrjournals.org/content/38/11_Part_2/4186.short. 
  6. "Steroid hormone receptors and pharmacology". Journal of Steroid Biochemistry 12: 143–157. January 1980. doi:10.1016/0022-4731(80)90264-2. PMID 7421203.