Using CCCCc1ncc(/C=C(\Cc2cccs2)C(=O)OC)n1Cc1ccc(C(=O)OC)c2ccccc12 to produce CCCCc1ncc(C=C(Cc2cccs2)C(=O)O)n1Cc1ccc(C(=O)O)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.