Using CCOC(C)=O, COc1ccc2[nH]c3cc(-c4ccccc4Cl)c4c(c3c2c1)C(=O)NC4=O to produce COc1ccc2c(c1)c1c3c(c(-c4ccccc4Cl)cc1n2C(C)=O)C(=O)NC3=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.