C[C@@]12CCC(=O)C=C1C[C@H](O)[C@@H]1[C@@H]2CC[C@]2(C)[C@H]1CC[C@]2(C)O
The donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?