Using Cc1c(Cc2c(N)n[nH]c2N)cccc1C(F)(F)F, CCOC(=O)CC(=O)C1CCOCC1 to produce Cc1c(Cc2c(N)nn3c(O)cc(C4CCOCC4)nc23)cccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.