Using CCCCCCCCCCCCCCCCS(=O)(=O)Nc1cc(OC)c(NC(C)=O)cc1OC to produce CCCCCCCCCCCCCCCCS(=O)(=O)Nc1cc(OC)c(N)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.