Using COc1ncc(CCl)cn1, O=C1Nc2ccccc2C12COc1cc3c(cc12)CCO3 to produce COc1ncc(CN2C(=O)C3(COc4cc5c(cc43)CCO5)c3ccccc32)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.