Enantioselective synthesis of N-Boc-2,2-dimethyloxazolidine-5-carbaldehydes, versatile precursors of dipeptide isosteres
作者:Mireia Pastó、Albert Moyano、Miquel A. Pericàs、Antoni Riera
DOI:10.1016/s0040-4039(97)10738-9
日期:1998.3
2-dimethyl-oxazolidine-5-carbaldehydes have been efficiently prepared from N-Boc-3-amino-1,2-alkanediols, readily available in enantiopure or enantioenriched form by Sharpless epoxidation methodology. These compounds have been converted into N-Boc-(S)-γ-[(S)-1-aminoalkyl]-γ-lactones which are key intermediates of hydroxyethylene dipeptide isosteres.
高度对映体富集的顺式和反式N -Boc-2,2-二甲基-恶唑烷-5-甲醛是由N -Boc-3-氨基-1,2-链烷二醇有效制备的,可通过Sharpless环氧化方法轻松地以对映体或对映体形式获得。这些化合物已被转化为N- Boc-(S)-γ -[((S)-1-氨基烷基)-γ-内酯,它们是羟乙烯二肽等排体的关键中间体。