Three Testosterone Derivatives

The crystal structures of three testosterone derivatives are discussed and compared. Both anti- and syn-3-benzyloxyimino­androst-4-en-17β-yl acetate, C₂₈H₃₇NO₃, and their parent compound, 3-oxoandrost-4-en-17β-yl acetate, C₂₁H₃₀O₃, are important for the correlation between the syn–anti geometry of unsaturated oximes and their circular dichroism for the longest wavelenght CD bands.

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