tert-butyl (7R,9S)-7-(tert-butyldiphenylsilyloxy)-1-(4,5-dimethoxy-2-nitrophenyl)-13,13-dimethyl-3,11-dioxo-2,12-dioxa-4,10-diazatetradecane-9-carboxylate 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 10.0h,
以75%的产率得到tert-butyl (7R,9S)-1-(4,5-dimethoxy-2-nitrophenyl)-7-hydroxy-13,13-dimethyl-3,11-dioxo-2,12-dioxa-4,10-diazatetradecane-9-carboxylate