Using CCOC(=O)CCl, CC1NC(=O)NN=C1c1ccc(O)c(Cl)c1 to produce CCOC(=O)COc1ccc(C2=NNC(=O)NC2C)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.