Using CCOC(=O)C1CCN(C(=O)c2cc(-c3ccccc3)c(=O)n3c2-c2sccc2CC3)CC1 to produce O=C(O)C1CCN(C(=O)c2cc(-c3ccccc3)c(=O)n3c2-c2sccc2CC3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.