(5R,6R)-tert-butyl 6-[8'-(2''-hexyl-1'',3''-dioxolan-2''-yl)octyl]-8,8-dimethyl-2-oxo-3,7,9-trioxa-1-azaspiro[4.5]decane-1-carboxylate 在
caesium carbonate 作用下,
以
甲醇 为溶剂,
反应 1.5h,
以93%的产率得到tert-butyl {(4R,5S)-4-[8'-(2''-hexyl-1'',3''-dioxolan-2''-yl)octyl]-5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxan-5-yl}carbamate