Using CCCC(=O)c1cc(C(=O)OCC)c(=O)n2c(-c3c(C)cc(C)cc3C)cccc12 to produce CCCC(=O)C1=C2C=CC=C(c3c(C)cc(C)cc3C)N2C(=O)C(C(=O)OCC)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.