Using C[O-], CCC(CC)c1cc(C)nn2c(-c3sc4cccnc4c3Br)c(C)nc12 to produce CCC(CC)c1cc(C)nn2c(-c3sc4cccnc4c3OC)c(C)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.