SC-5233
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| Other names | 6,7-Dihydrocanrenone; 7-Desthioacetylspironolactone; 20-Spirox-4-ene-3,20-dione |
| Routes of administration | By mouth |
| Drug class | Antimineralocorticoid; Progestogen; Steroidal antiandrogen |
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| E number | {{#property:P628}} |
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| ECHA InfoCard | {{#property:P2566}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value). |
| Chemical and physical data | |
| Formula | C22H30O3 |
| Molar mass | 342.479 g·mol−1 |
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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] It has about 46-fold higher oral potency than SC-5233.[6]
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.[7] It is the unsubstituted parent or prototype compound of the spirolactone family of steroidal antimineralocorticoids.[2][8]
Similarly to other spirolactones like canrenone and spironolactone, SC-5233 has some antiandrogenic activity and antagonizes the effects of testosterone in animals.[7] In addition, along with SC-8109, it has been found to possess potent progestogenic activity.[9]
Chemical structures of spirolactones
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References
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