Using COc1ccc(N(c2cccc3c2sc2ccccc23)c2cccc3c2sc2ccccc23)cc1 to produce Oc1ccc(N(c2cccc3c2sc2ccccc23)c2cccc3c2sc2ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.