Using C[C@]12CC[C@H]3[C@@H](C[C@@H]4O[C@@]45C[C@@H](O)CC[C@]35C)[C@@H]1CCC2=O to produce C[C@]12CC[C@H]3[C@@H](CC[C@@]4(O)C[C@@H](O)CC[C@]34C)[C@@H]1CC[C@@H]2O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.