Using C[C@]12CC[C@H]3[C@@H](CC=C4C[C@@H](O)CC[C@@]43CO)[C@@H]1CCC2=O to produce C[C@]12CC[C@H]3[C@@H](CC=C4CC(=O)CC[C@@]43C=O)[C@@H]1CCC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.