Using CCOC(=O)c1cc2cc(Oc3ccnc4cc(OC)c(OC)cc34)ccc2[nH]1 to produce COc1cc2nccc(Oc3ccc4[nH]c(C(=O)O)cc4c3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.