An efficient stereoselective total synthesis of (–)-galactostatin (–)-1 from N-tert-butoxycarbonyi-2,3-isopropylidene L-serine methyl ester (21% overall yield) is described via thiazole intermediates serving as protected aldehydes; the parallel synthesis of the natural antipole (+)-1 starts from D-serine.
介绍了通过
噻唑中间体作为受保护的醛,从 N-叔丁氧羰基-2,3-异亚丙基
L-丝氨酸甲酯高效立体选择性全合成 (-)-galactostatin (-)-1(总收率 21%)的方法;从
D-丝氨酸开始平行合成天然反极 (+)-1。