Using O=C(Cc1ccccc1)c1ccc2c(=O)n3c(nc2c1)CCCCC3 to produce O=c1c2ccc(C(O)Cc3ccccc3)cc2nc2n1CCCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.