Using CC(=O)CBr, CCOC(=O)c1c2n(c3cc(N4CCNCC4)c(F)cc3c1=O)C(C)S2 to produce CCOC(=O)c1c2n(c3cc(N4CCN(CC(C)=O)CC4)c(F)cc3c1=O)C(C)S2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.