Minor and trace sterols in marine invertebrates. 27. Isolation, structure elucidation, and partial synthesis of 25-methylxestosterol, a new sterol arising from quadruple biomethylation in the side chain
Minor and trace sterols in marine invertebrates. 27. Isolation, structure elucidation, and partial synthesis of 25-methylxestosterol, a new sterol arising from quadruple biomethylation in the side chain