C=C(C)[C@@H]1CC[C@@H](C)[C@](O)([C@@H]2C[C@@H]([C@H](COC(=O)c3ccccc3)OC(=O)c3ccccc3)OC2=O)C1
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?