400-91-9 
 
188528-95-2 
 
3-(5-bromo-2,4-dinitro-phenyl)-2-oxo-pyrrolidine-1,3-dicarboxylicacid1-<i>tert</i>-butylester3-ethylester 
 
3-(5-bromo-2,4-dinitro-phenyl)-2-oxo-pyrrolidine-1,3-dicarboxylicacid1-<i>tert</i>-butylester3-ethylester 
[1]JournaloftheAmericanChemicalSociety,2005,vol.127,p.3670-3671