C=C1CC[C@H]2[C@@](C)(CCC[C@@]2(C)COC(=O)CCC(=O)O)[C@@H]1CCC1=CC(=O)OC1
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?