and sultams 1, were treated with aldehydes in the presence of NaBH3CN to give N-alkylhydroxylamines 5. N,O-Hydrogenolysis of 5 and saponification of 6 furnished (S)-N-alkylamino acids 7 in high optical purity. Similarly, (R)-N-alkylamino acids 12 were obtained from the antipodal acylsultams 8.
在NaBH 3 CN的存在下,用醛处理容易从非手性酰
氯2和阿马酸1中获得的结晶N-羟基
氨基酸衍
生物4,得到N-烷基
羟胺5。Ñ,ø的-Hydrogenolysis 5和皂化6布置(小号) - ñ -烷基
氨基酸7在高光学纯度。类似地,(R)-N-烷基
氨基酸12从对映体酰基磺酰胺8获得。。