You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(E,1S,2S)-1-(5-bromo-2-hydroxyphenyl)-5-(hydroxyamino)-5-oxo-2-phenoxypent-3-enyl] N-(1,3-benzodioxol-5-yl)carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H21BrN2O8
assistant