The nitration of canrenone with acetic anhydride/nitric acid

3-Oxo-17α-pregna-4,6-diene-21,17-carbolactone (canrenone, II) is produced from the potassium salt of 17-hydroxy-3-oxo-17α-pregna-4,6-diene-21-carboxylic acid (I) by acid catalyzed lactonization. II reacts with acetic anhydride/nitric acid to give one main product (III) and some minor products. The s...

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Veröffentlicht in:	Steroids 1997-12, Vol.62 (12), p.762-766
Hauptverfasser:	Megges, Rudolf, Weiland, Jürgen, Undeutsch, Bernd, Büchting, Horst, Schön, Rudolf
Format:	Artikel
Sprache:	eng
Schlagworte:	3-oxo-17α-pregna-4,6-diene-21,17-carbolactone 4-nitrocanrenone Acetic Acid - chemistry acetic anhydride/nitric acid nitration ambidence Biological and medical sciences canrenone Canrenone - analogs & derivatives Canrenone - chemical synthesis Canrenone - chemistry Canrenone - pharmacology electrophilic substitution formula omitted Fundamental and applied biological sciences. Psychology Magnetic Resonance Spectroscopy Mass Spectrometry Nitrates - chemistry Nitric Acid - chemistry Spectrophotometry, Infrared Spectrophotometry, Ultraviolet Steroid hormones. Cholecalciferol derivatives Ultraviolet Rays Vertebrates: endocrinology
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