Using C1COCCN1, Nc1c(C(=O)c2cccc(C(=O)CBr)c2)cnn1-c1ccc(F)cc1 to produce Nc1c(C(=O)c2cccc(C(=O)CN3CCOCC3)c2)cnn1-c1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.