Using CCCOc1c(CN(C)C(=O)/C=C/c2cnc3c(c2)CNC(C)(C)C(=O)N3)cccc1C(C)C to produce CCCOc1c(CN(C)C(=O)/C=C/c2cnc3c(c2)CNCC(=O)N3)cccc1C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.