Using CCC(CC)Nc1cc(C)nc(Nc2c(C)cc(C)cc2C)c1N, COC(C)(OC)OC to produce CCC(CC)Nc1cc(C)nc2c1nc(C)n2-c1c(C)cc(C)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.