We have studied the reactivity of β-enaminoesters 1 (R2=OMe) or β-enaminoketone 1 (R2=Me), derived from (S)-phenylglycinol, with activated acrylate derivatives. Substrates 1 (R1=Me) afforded by aza-annulation oxazololactams 2 and 3,4-dihydro-2-pyridones 3. In the same conditions β-enaminoesters 1 (R1=H) furnish N-acylated oxazolidines 4.
我们已经研究了衍生自(S)-苯基
甘醇的β-烯胺酸酯1(R 2 = OMe)或β-烯胺酮1(R 2 = Me)与活化
丙烯酸酯衍
生物的反应性。由氮杂-环氧基
恶唑内酰胺2和3,4-二氢-2-
吡啶酮3提供的底物1(R 1 = Me)。在相同条件下,β-烯
氨基酸酯1(R 1 = H)提供N-酰化的
恶唑烷4。