Using O=C1CCC(=O)N1Cl, CCOC(=O)C1CCCn2c(-c3ccc(-n4cnc(C)c4)c(OC)c3)nnc21 to produce CCOC(=O)C1(Cl)CCCn2c(-c3ccc(-n4cnc(C)c4)c(OC)c3)nnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.