Using CC(C)(C)OC(=O)N1CCC(CCCn2c(=O)c3cnc4cccc2n43)CC1 to produce O=c1c2cnc3cccc(n1CCCCC1CCNCC1)n32, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.