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A method for the production of 4 - fluorine - 3 - - ketostatines the inductive load, - steroids the pregnan -, - androstan and 19 - nor - androstane series
A method for the production of 4 - fluorine - 3 - - ketostatines the inductive load, - steroids the pregnan -, - androstan and 19 - nor - androstane series