Using CCOC(=O)c1ccc(F)cc1, CC(C)(C)OC(=O)N1CCNCC1 to produce CCOC(=O)c1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.