Using Nc1c(F)c(F)cc2c1c(=O)c(C(=O)O)cn2C1CC1, NCCNc1ccccn1 to produce Nc1c(F)c(NCCNc2ccccn2)cc2c1c(=O)c(C(=O)O)cn2C1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.