Using CCOC(=O)c1cccc(NC(=O)Nc2ccc(Oc3ccnc4cc(OC)c(OC)cc34)cc2)c1 to produce COc1cc2nccc(Oc3ccc(NC(=O)Nc4cccc(C(=O)O)c4)cc3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.