Using CC(=O)Oc1c2n(c(=O)n(C(C)C)c1=O)C(CCN(C)C(C)=O)CN(Cc1ccc(F)cc1)C2=O to produce CC(=O)N(C)CCC1CN(Cc2ccc(F)cc2)C(=O)c2c(O)c(=O)n(C(C)C)c(=O)n21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.