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Article Abstract
Aim: To study the impurity of the drug testosterone.
Methods: Chromatography methods were used to separate the chemical constituents. Their structures were determined by NMR and MS spectral analysis.
Results: Two new epimers were isolated from the mother liquid of the drug.
Conclusion: These new epimers were identified as 3alpha-ethoxyandrost-4-en-17beta-ol, 3beta-ethoxyandrost-4-en-17beta-ol.
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