Cyclization of 3-methoxy-Δ1,3,5,(10)-8,14-secoestratriene-14,17-dione
Organic and Biological Chemistry
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Conclusions
Depending on the conditions, 3-methoxy-Δ1,3,5(10)-8,14-secoestratriene-14,17-dione (III) under the influence of acid agents is cyclized to estradiol, equilenol, 18-norequilenane, and cyclopentanophenanthrene derivatives. As a result, the spatial factor determines the course of the reaction even if the Δ9(11)-double bond, which activates the H atoms at C7, is absent.
Keywords
Double Bond Estradiol Dione Spatial Factor Acid Agent
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