Using O=C([O-])[O-], Cc1csc(Nc2ncc(O)cc2Oc2ccccc2)n1 to produce COc1cnc(Nc2nc(C)cs2)c(Oc2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.