Using CC(O)c1cccc(N(C)C(=O)OC(C)(C)C)n1, CCOC(=O)CC1Cc2ccc(O)cc2Oc2ccccc21 to produce CNc1cccc(CCOc2ccc3c(c2)Oc2ccccc2C(CC(=O)O)C3)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.