Using COC(=O)c1ccc(-c2ccc3sc(CC4CCN(C5CCCCC5)C4=O)cc3c2)cc1 to produce O=C(O)c1ccc(-c2ccc3sc(CC4CCN(C5CCCCC5)C4=O)cc3c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.