Process for the preparation of 17-desoxy-corticosteroids
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United States of America Patent
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Oct 30, 2018
Grant Date -
Apr 27, 2017
app pub date -
Jan 9, 2017
filing date -
Jul 20, 2010
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Abstract
The present invention provides an improved process for the preparation of 17-desoxy corticosteroid derivatives in a single chemical step by reacting the 17-hydroxy starting material with an excess of Trimethylsilyl Iodide. The present invention is specifically advantageous in preparing 17-desoxy corticosteroid derivatives having one or more halogen groups at positions 2, 6, 7 or 9 of the corticosteroid such as Clocortolone of Desoximetasone.
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