Using COCOc1cccc(OC)c1-c1ccc(N)cc1C(O)c1ccccc1 to produce COc1cccc2c1-c1ccc(N)cc1C(c1ccccc1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.