Using CCOC(=O)COc1c(C(=O)OC)sc2c1sc1cc(NC3CCCCC3)ccc12 to produce O=C(O)COc1c(C(=O)O)sc2c1sc1cc(NC3CCCCC3)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.