PROCESS FOR THE PREPARATION OF 17-DESOXY-CORTICOSTEROIDS

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United States of America Patent

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13811141

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Abstract

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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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Patent Owner(s)

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TARO PHARMACEUTICALS INDUSTRIES LTD14 HAKITOR STREET HAIFA BAY HAIFA 2624761

International Classification(s)

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  • 2011 Application Filing Year
  • C07J Class
  • 100 Applications Filed
  • 57 Patents Issued To-Date
  • 57 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2011201220132014201520162017201820190255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cherniak, Simon Haifa, IL 3 0
Cyjon, Rosa Haifa, IL 10 27
Nudelman, Igor Haifa, IL 11 44
Ozer, Ilana Yokneam llit, IL 5 0

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges112593101 - 1011 - 2021 - 3071 - 800246810121416182022242628

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