Using O, COC(COc1ccc2c(O)cc(-c3nc(C(C)C)cs3)nc2c1Cl)OC to produce CC(C)c1csc(-c2cc(O)c3ccc(OCCN4CCOCC4)c(Cl)c3n2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.