Using CCOC(=O)c1c(-c2ccccc2OC)csc1N1C(=O)c2ccccc2C1=O to produce COc1ccccc1-c1csc(N2C(=O)c3ccccc3C2=O)c1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.