Using O=C(NCC1CCCNC1)OCc1ccccc1, CCOC(=O)c1csc(Br)n1 to produce CCOC(=O)c1csc(N2CCCC(CNC(=O)OCc3ccccc3)C2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.