Using CC=CCBr, CCCOC(=O)CNC(=O)Nc1ccc(C(C)=NO)cc1 to produce CC=CCON=C(C)c1ccc(NC(=O)NCC(=O)OCCC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.