Using CCO, CC(C)(Oc1ccc2c(c1)CC(NCc1ccccc1)CCC2)C(=O)O to produce CCOC(=O)C(C)(C)Oc1ccc2c(c1)CC(NCc1ccccc1)CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.