Using [N-]=[N+]=[N-], COC(=O)c1c(F)ccc2nc3ccc4c(OC)cccc4c3nc12 to produce COC(=O)c1c(N)ccc2nc3ccc4c(OC)cccc4c3nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.