SC-5233

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SC-5233
SC-5233.svg
Clinical data
Synonyms 6,7-Dihydrocanrenone; 7-Desthioacetylspironolactone; 20-Spirox-4-ene-3,20-dione
Routes of
administration
By mouth
Drug class Antimineralocorticoid; Progestogen; Steroidal antiandrogen
ATC code
  • None
Identifiers
CAS Number
  • 976-70-5
PubChem CID
  • 101931
ChemSpider
  • 92091
ChEMBL
  • ChEMBL400534
Chemical and physical data
Formula C22H30O3
Molar mass 342.4718 g/mol
3D model (JSmol)
  • Interactive image

SC-5233, also known as 6,7-dihydrocanrenone or 20-spirox-4-ene-3,20-dione, is a synthetic, steroidal antimineralocorticoid of the spirolactone group which was developed by G. D. Searle & Company in the 1950s but was never marketed.[1][2] It was the first synthetic antagonist of the mineralocorticoid receptor to have been identified and tested in humans.[1][3] The drug was found to lack appreciable oral bioavailability and to be of low potency when administered parenterally,[4] but it nonetheless produced a mild diuretic effect in patients with congestive heart failure.[1] SC-8109, the 19-nor (19-demethyl) analogue, was developed and found to have improved oral bioavailability and potency, but still had low potency.[5] Spironolactone (SC-9420; Aldactone) followed and had both good oral bioavailability and potency, and was the first synthetic antimineralocorticoid to be marketed.[3]

SC-5233 is the propionic acid lactone of testosterone (androst-4-en-17β-ol-3-one) and is also known 3-(3-oxo-17β-hydroxyandrost-4-en-17α-yl)propionic acid γ-lactone or as 17α-(2-carboxyethyl)testosterone γ-lactone.[6] It is the unsubstituted parent or prototype compound of the spirolactone family of steroidal antimineralocorticoids.[2][7]

Similarly to other spirolactones like canrenone and spironolactone, SC-5233 has some antiandrogen activity and antagonizes the effects of testosterone in animals.[6] In addition, along with SC-8109, it has been found to possess potent progestogenic activity.[8]

Chemical structures of spirolactones
The image above contains clickable links
Chemical structures of progesterone and spirolactones (steroid-17α-spirolactones).

References

  1. ^ a b c E. Buchborn; K. D. Bock (14 December 2013). Diuresis and Diuretics / Diurese und Diuretica: An International Symposium Herrenchiemsee, June 17th–20th, 1959 Sponsored by CIBA / Ein Internationales Symposium Herrenchiemsee, 17.–20. Juni 1959 Veranstaltet mit Unterstützung der CIBA. Springer-Verlag. pp. 224, 261. ISBN 978-3-642-49716-2.
  2. ^ a b Gyorgy Szasz; Zsuzsanna Budvari-Barany (19 December 1990). Pharmaceutical Chemistry of Antihypertensive Agents. CRC Press. pp. 82–. ISBN 978-0-8493-4724-5.
  3. ^ a b Dennis V. Cokkinos (6 November 2014). Introduction to Translational Cardiovascular Research. Springer. pp. 61–. ISBN 978-3-319-08798-6.
  4. ^ The British Encyclopaedia of Medical Practice: Medical progress. Butterworth & Company. 1961. p. 302. Cena and Kagawa first synthesized 3-(3-oxo-17β-hydroxy-4-androsten-17α-yl)-propionic acid-gamma-lactone and later prepared its 19-nor analogue. These compounds were designated SC-5233 and SC-8109, respectively. Both have anti-aldosterone activity and most of the early work on aldosterone antagonism was done with their aid. SC-5233 is not appreciably absorbed when given by mouth and the parenteral dose is large. As in the case of certain other steroids the 19-nor derivative was an improvement on the parent compound (Klyne, 1959). SC-8109 is well absorbed from the alimentary tract, but the dose is about 2 g daily.
  5. ^ Milan L. Brandon (1 January 1962). Corticosteroids in medical practice. Thomas.
  6. ^ a b KAGAWA CM, STURTEVANT FM, VAN ARMAN CG (1959). "Pharmacology of a new steroid that blocks salt activity of aldosterone and desoxycorticosterone". J. Pharmacol. Exp. Ther. 126 (2): 123–30. PMID 13665517. [SC-5233] (total dose of 5 mg/rat) partially blocked the effects of testosterone propionate on the seminal vesicles and prostate in similar animals.
  7. ^ Janos Fischer; C. Robin Ganellin (24 August 2010). Analogue-based Drug Discovery II. John Wiley & Sons. pp. 361–. ISBN 978-3-527-63212-1.
  8. ^ Hertz R, Tullner WW (1958). "Progestational activity of certain steroid-17-spirolactones". Proc. Soc. Exp. Biol. Med. 99 (2): 451–2. doi:10.3181/00379727-99-24380. PMID 13601900.


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