Using CCn1cc(C(=O)O)c(=O)c2c(N)c(F)c(N3CCC(NC(=O)OC(C)(C)C)C3)c(F)c21 to produce CCn1cc(C(=O)O)c(=O)c2c(N)c(F)c(N3CCC(N)C3)c(F)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.