Using CCOC(=O)c1ccc(NC(=O)c2ccc3c(c2)SCCCC3)cc1 to produce O=C(O)c1ccc(NC(=O)c2ccc3c(c2)SCCCC3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.