Using NCC(=O)O, CCCCOC(=O)c1nc(C#N)c2cc(Oc3ccc4oc(N(C)C)nc4c3)ccc2c1O to produce CN(C)c1nc2cc(Oc3ccc4c(O)c(C(=O)NCC(=O)O)nc(C#N)c4c3)ccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.