Using COc1ccc(OCC(=O)Nc2ccc(Oc3ccnc4cc(OC)c(OC)cc34)cc2)cc1 to produce COc1ccc(OCCNc2ccc(Oc3ccnc4cc(OC)c(OC)cc34)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.