Using COc1c(C)cc(C(=O)c2c(-c3ccccc3)oc3ccccc23)cc1C to produce Cc1cc(C(=O)c2c(-c3ccccc3)oc3ccccc23)cc(C)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.