Using C=C(C)c1snc(-c2ccc(CC)cc2)c1COc1ccc(CCC(=O)OCC)c(C)c1C to produce CCOC(=O)CCc1ccc(OCc2c(-c3ccc(CC)cc3)nsc2C(C)C)c(C)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.