Synthesis of (-)-N-Acetylslaframine by C-1, C-5 Bis-hydroxyalkylation of (S)-2-(N,N-Dibenzylamino)-1,5-pentanediol via Highly Diastereoselective Lithiation of the Dicarbamate - Hoppe, Dieter; Padeken, Lars; Gottschalk, Karin; Guarnieri, Walter; Fröhlich, Roland (Synthesis, 2007)