Using CCCCCC(O)CCCC(CC=Cc1cccc(C(=O)O)c1)C(C)=O to produce CCCCCC(O)CCCC(CCCc1cccc(C(=O)O)c1)C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.