Using CC(C)Cn1c(CNC(=O)OC(C)(C)C)c(-c2ccccc2)c2cc(S(C)(=O)=O)ccc2c1=O to produce CC(C)Cn1c(CN)c(-c2ccccc2)c2cc(S(C)(=O)=O)ccc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.