Using CCC1(c2cnc(S)n2Cc2ccccc2)Cc2ccc(F)cc2C1 to produce CCC1(c2cncn2Cc2ccccc2)Cc2ccc(F)cc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.