Using CSc1ccc(C(=O)CCC(=O)O)cc1, NC[C@H]1CN(c2ccc(N3CCOCC3)c(F)c2)C(=O)O1 to produce CSc1ccc(C(=O)CCC(=O)NC[C@H]2CN(c3ccc(N4CCOCC4)c(F)c3)C(=O)O2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.