Using COc1ccc(C(=O)c2nc(-c3ccc4[nH]c(=O)c(O)c(O)c4c3)cs2)cc1OC to produce COc1ccc(C(O)c2nc(-c3ccc4[nH]c(=O)c(O)c(O)c4c3)cs2)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.