Using CCOCCO, CSc1ncc2cc(F)c(=O)n(C3CCCC3)c2n1 to produce CCOCCOc1cc2cnc(SC)nc2n(C2CCCC2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.