Using Nc1nn2cc(F)cnc2c1C(=O)On1nnc2ccc(Cl)cc21, Cc1nsc(N)c1Br to produce Cc1nsc(OC(=O)c2c(N)nn3cc(F)cnc23)c1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.