Using COC(=O)c1ccc(Oc2ccc3c(c2)CCN(C(=O)OC(C)(C)C)CC3)c(OC)c1 to produce COc1cc(C(=O)O)ccc1Oc1ccc2c(c1)CCN(C(=O)OC(C)(C)C)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.