A formal synthesis to (+)-nephrosteranic acid from chiral nitroalkyl derivatives
作者:Cleber B. Barreto、Vera L. Patrocinio Pereira
DOI:10.1016/j.tetlet.2009.08.087
日期:2009.11
A concise and versatile formal synthesis to (+)-nephrosteranic acid was accomplished from a common nitroderivative 2 in a sequence of six steps. The adduct 2 was obtained via a highly syn-diastereoselective conjugate addition of 1-dodecyl nitronate ion to chiral enoate Z-5 (yield = 80%; de = 95%), derived from D-(+)-mannitol. (C) 2009 Elsevier Ltd. All rights reserved.