Using CC(C)(Cc1c[nH]c2c(C=CS(C)(=O)=O)cccc12)NC(=O)OC(C)(C)C to produce CC(C)(Cc1c[nH]c2c(CCS(C)(=O)=O)cccc12)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.