Using CCCCC(=O)O, CCCCCc1ccc(-c2ccc(-c3ncc(OCC(O)C(F)(F)F)cn3)cc2)cc1 to produce CCCCCc1ccc(-c2ccc(-c3ncc(OCC(OC(=O)CCCC)C(F)(F)F)cn3)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.