Using CCOC(=O)C(CNC(=O)Cc1ccc(OC)c(OC)c1)c1ccc(OC)c(OC)c1 to produce COc1ccc(CC(=O)NCC(C(=O)O)c2ccc(OC)c(OC)c2)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.