Attempts to prepare the benzazepine ring system of the Rhoedine alkaloids using a Pummerer cyclization of the β-amino sulfoxide (16) gave instead the unexpected alcohol (19). The β-amino sulfoxide (16) was prepared via a diastereoselective reduction of the β-sulfinyl enamine (8) with sodium borohydride.
尝试使用β-
氨基亚砜的Pummerer环化法制备Rhoedine
生物碱的苯并ze庚因环系统(16),得到了意外的醇(19)。通过用
硼氢化钠将β-亚磺酰基烯胺(8)非对映选择性还原来制备β-
氨基亚砜(16)。