Using C[C@]12CC[C@H]3[C@@H](CC4(OCCO4)C4C[C@@H](O)CC[C@@]43C)[C@@H]1CC[C@@H]2O to produce C[C@]12CCC(=O)CC1C1(C[C@@H]3[C@@H]2CC[C@]2(C)C(=O)CC[C@@H]32)OCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.