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The synthesis and biological evaluation of A-ring substituted steroidal p-quinones
(Pergamon-Elsevier Science Ltd, Oxford, 1997)
The preparation of A-ring steroidal 1,4-quinones involves m-CPBA/(BzO)(2)O/hv oxidation of estrone (or estradiol 17-acetate), acid rearrangement of the obtained quinol, and oxidation A detailed NMR analysis of 1,4-quinones ...