(±)-Lupinine and (±)-epilupinine have been prepared starting from commercially available 6-valerolactam. The synthetic route involves the advantages of the cyclization based on α-sulfinyl carbanions.
(±)-
羽扇豆碱和 (±)-epilupinine 已经从市售的 6-戊内酰胺开始制备。该合成路线涉及基于α-亚磺酰基碳负离子的环化的优点。