反应详情

The title compound was prepared from tert-Butyl 1-oxo-2-(5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]dec-3-ene-8-carboxylate using TFA in an analogous fashion to that described for 1-19, Step B. LC/MS: [(M+1)]+=235