Using C[C@]12C[C@H]3CCC4=CC(=O)CC[C@H]4[C@@H]3C[C@@H]1CCC2=O to produce C[C@]12C[C@H]3CC[C@H]4CC(=O)CC[C@H]4[C@@H]3C[C@@H]1CCC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.