(1RS,4SR,5SR)-4-hydroxy-2-methoxycarbonyl-2-azabicyclo[3.3.1]nonan-6-one 、
(S)-2-氯-2-氧代-1-苯基乙基乙酸酯 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
生成 methyl (1S,4R,5R)-4-[(2S)-2-acetyloxy-2-phenylacetyl]oxy-6-oxo-2-azabicyclo[3.3.1]nonane-2-carboxylate 、 methyl (1R,4S,5S)-4-[(2S)-2-acetyloxy-2-phenylacetyl]oxy-6-oxo-2-azabicyclo[3.3.1]nonane-2-carboxylate