Using CCOC(=O)C1=C(c2ccc(F)cc2)N=C(N)NC1C(C)C to produce CCOC(=O)c1c(-c2ccc(F)cc2)nc(N)nc1C(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.