O=C(CC1CC1)Nc1ccc2c(c1)[C@H]1C[C@H](CC(=O)N3CCc4ccccc4C3)O[C@@H](CO)[C@H]1O2
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?