CC(=O)OCC1OC(O[C@@H]2C[C@H]3C(C)(C)[C@@H](OC(C)=O)CC[C@]3(C)[C@H]3CC[C@]45C[C@]4(CC[C@H]5[C@@H](C)C[C@@H](O)[C@H](O)C(C)(C)F)[C@]23C)C(O)C(O)C1O
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?