Using O=C(O)Cc1ccncc1, Nc1ccc2oc3c(c2c1)CCCCCC3 to produce O=C(Cc1ccncc1)Nc1ccc2oc3c(c2c1)CCCCCC3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.