作者:Bohumil Dolensky、Yoshio Takeuchi、Louis A Cohen、Kenneth L Kirk
DOI:10.1016/s0022-1139(00)00385-7
日期:2001.1
5-Fluoroimidazole-4-carboxylic acid ethyl ester was converted to the corresponding hydrazide. Oxidation of the hydrazide to the carbonyl azide and Curtius rearrangement in t-butyl alcohol produced 4-t-butyloxycarbonylamino-5-fluoroimidazole. Dissolution of the t-butyl carbamate in 50% HBF4, in situ diazotation of the resulting amine, and irradiation produced the target compound.