Using C[C@@H]1CN(C(=O)OC(C)(C)C)CCN1c1c(N)cnn1C, CC(C)(C)OC(=O)Nc1sc(-c2c(F)cccc2F)nc1C(=O)O to produce C[C@@H]1CNCCN1c1c(NC(=O)c2nc(-c3c(F)cccc3F)sc2N)cnn1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.