Using CC(C)(C)OC(=O)N1CCC(Cn2c(=O)c3cccc4ncc(c2=O)n43)CC1 to produce O=c1c2cccc3ncc(c(=O)n1CC1CCNCC1)n32, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.