In addition to a previous report, the reaction of tigogenin acetate with ICl in refluxing CHCl(3) produced the hitherto unknown 23R-iodotigogenin acetate, bearing an axial iodine atom at C-23 and its already reported 23S-epimer. The same treatment of sarsasapogenin acetate led to a single diasteromer characterized as 23S-iodosarsasapogenin acetate. A full characterization of the obtained compound including (1)H, (13)C NMR, MS and X-ray diffraction is provided.
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| http://dx.doi.org/10.1016/j.steroids.2009.07.008 | DOI Listing |
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