[{"from": "human", "value": "Write a possible SMILES of given compound. ->  Betamethasone-17-valerate\n"}, {"from": "gpt", "value": " CCCCC(=O)OC3(C(C)CC4C2CCC1=CC(=O)C=CC1(C)C2(F)C(O)CC34C)C(=O)CO\n"}]