Using CCOC(=O)N1CCC(C(N)=S)CN1C(=O)OCC, O=C(CBr)C1=NOC(c2c(F)cccc2F)C1 to produce CCOC(=O)N1CCC(c2nc(C3=NOC(c4c(F)cccc4F)C3)cs2)CN1C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.