Using O=Cc1ccc(B(O)O)cc1, Brc1ccc(-c2cccc3c2oc2ccccc23)cc1 to produce O=Cc1ccc(-c2ccc(-c3cccc4c3oc3ccccc34)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.