Using CCCCc1c(Cc2ccc(-c3ccccc3C(=O)OC)cc2)c(=O)nc2n1CC(=O)N2 to produce CCCCc1c(Cc2ccc(-c3ccccc3C(=O)O)cc2)c(=O)nc2n1CC(=O)N2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.