tert-butyl (2S,3S,6S)-3-hydroxy-6-[(2S)-2-hydroxy-2-phenylethyl]-2-[(2-methyl-1,3-dioxolan-2-yl)methyl]piperidine-1-carboxylate 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
反应 3.5h,
以74%的产率得到(3S,5R,8S,9S)-7-hydroxy-8-[(2-methyl-1,3-dioxolan-2-yl)methyl]-3-phenyl-2-oxa-8a-aza-4,4a,5,6,7,8-hexahydro-3H-naphthalen-1-one