Using CSc1ncc2c(n1)N(C)C(=O)N(c1ccc(F)c(N)c1)C2 to produce CN1C(=O)N(c2ccc(F)c(N)c2)Cc2cncnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.