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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 10
BKCSDE 30(10)
October 20, 2009 

Isolation and Structural Elucidation of Related Impurities in Canrenone
Ya Xi Yang, Guo Rong Chen*
Canrenone, Imputities, Chromatographic methods, Spectrometric analysis
Ten steroidal compounds as impurities in canrenone were isolated from the enriched mother liquor by using various chromatographic methods. Their structures were elucidated by spectrometric analysis, among which three new compounds were characterized as 3-(3-oxo-7α-(ethoxycarbonyl)methyl-17β-hydroxy-4-androsten-17α-yl) propionic acid γ-lactone (1), 3-(3-oxo-7α-ethoxy-17β-hydroxy-4-androsten-17α-yl) propionic acid γ-lactone (2) and 3-(3-oxo-5β-propionic acid-γ-lactone-6β,17β-hydroxy-4-androstan-17α-yl) propionic acid γ-lactone (3).
2398 - 2402
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