Using CCOC(=O)/C=C/c1ccc(CN(C)c2nc(-c3ccccc3)cs2)cc1 to produce CCOC(=O)CCc1ccc(CN(C)c2nc(-c3ccccc3)cs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.