Using N=C(N)C(F)(F)F, COC(=O)C(Oc1ccccc1OC)C(=O)OC to produce COc1ccccc1OC1C(=O)N=C(C(F)(F)F)NC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.