Using COCCl, COc1ccc(OCCCN(CCO)C(C)C)c(C2Sc3cc(Cl)ccc3N2C(C)=O)c1 to produce COCOCCN(CCCOc1ccc(OC)cc1C1Sc2cc(Cl)ccc2N1C(C)=O)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.