The chiral pyrrolidine derivatives, 4-(hydroxymethyl)-3-azabicyclo[3.1.0]hexan-2-ones (10 and 11) and 5, 5-disubstituted 2-pyrrolidinones (20, 21 and 22), were synthesized starting from (S)-pyroglutamic acid and absolute configuration determination was made based on the 1H-NMR spectra of the bicyclic lactam intermediates.
手性
吡咯烷衍
生物 4-(羟甲基)-
3-氮杂双环[3.1.0]己烷-2-酮(10 和 11)和 5,5-二取代的
2-吡咯烷酮(20,21 和 22)是从 (S)-
吡咯谷
氨酸开始合成的,并根据双环内酰胺中间体的 1H-NMR 光谱进行了绝对构型测定。