Using C[Sn](C)(C)c1ncc(Cl)cc1F, Cc1nc(-c2cnn(C)c2Br)c2c(N3CCC3)ncnn12 to produce Cc1nc(-c2cnn(C)c2-c2ncc(Cl)cc2F)c2c(N3CCC3)ncnn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.