Stereoselective Synthesis of (2<i>S</i>, 8<i>S</i>)‐2‐Benzyl Hexahydro‐pyrrodizin‐3‐one Starting from (L)‐Proline Based on Stereoselective Benzylation
作者:Jing Yi Jin、Ming Hua Zheng、Xue Wu、Guan Rong Tian
DOI:10.1081/scc-200028616
日期:2004.1
Abstract A pyrrolizidine alkaloid, (2S, 8S)‐2‐benzyl hexahydro‐pyrrodizin‐3‐one, was synthesized from (L)‐proline using diastereoselective benzylation as the key step. The absolute configuration of the target compound was confirmed through 2D H‐H COSY and H‐H NOESY spectra.
摘要 采用非对映选择性苄基化反应为关键步骤,以 (L)-脯氨酸为原料合成了一种吡咯里西啶生物碱,(2S, 8S)-2-苄基六氢-吡咯嗪-3-one。通过二维 H-H COZY 和 H-H NOESY 光谱确认了目标化合物的绝对构型。