Using CC(=O)OC(C)=O, C[C@]12CC[C@H](O)CC1CC[C@@H]1[C@@H]2CC[C@]2(C)C(=O)CC[C@]12O to produce CC(=O)O[C@H]1CC[C@@]2(C)C(CC[C@@H]3[C@@H]2CC[C@]2(C)C(=O)CC[C@]32O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.