Using COc1c(OCC2(C)COCOC2)ccnc1CSc1nc2cc(C(C)=O)c(C)cc2[nH]1, O=C([O-])O to produce COc1c(OCC2(C)COCOC2)ccnc1CS(=O)c1nc2cc(C(C)=O)c(C)cc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.