CC(=O)O[C@@H]1[C@@H](O)C2=C3[C@@]4(C)[C@H](CC(=O)C(C)(C)[C@H]14)[C@]3(O)[C@H](OC(C)=O)[C@@]1(C[C@@H]1C)C2=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?