Using C=C(OCC)c1nc(Nc2ccc(-n3cnc(C)c3)c(OC)c2)nc(COCC(F)(F)F)c1C to produce COc1cc(Nc2nc(COCC(F)(F)F)c(C)c(C(C)=O)n2)ccc1-n1cnc(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.