Using C=CCC12OCC3CC(C=C4C(=O)c5ccccc5OC431)C2=O to produce C=CCC12OCC3CC(CC4C(=O)c5ccccc5OC341)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.