Using CO/C=C/c1cccc(Nc2ccc3c(c2)N(c2nc4c(s2)C(=O)NC(C)(C)C4)CCO3)n1 to produce COCCc1cccc(Nc2ccc3c(c2)N(c2nc4c(s2)C(=O)NC(C)(C)C4)CCO3)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.