Using COc1c(Nc2cc(C)c3n(c2=O)C2(CCCCC2)NC3=O)ncnc1N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C to produce Cc1cc(Nc2ncnc(N)c2O)c(=O)n2c1C(=O)NC21CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.