Using N#CNC12CC3CC(CC(C3)C1)C2, Nc1ccc(F)cc1F to produce N=C(Nc1ccc(F)cc1F)NC12CC3CC(CC(C3)C1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.