C=C1[C@@H]2C[C@]3(C(CC2=O)[C@]24C5C[C@H]3[C@H]2N(CC)C[C@]5(C)CC[C@@H]4O)[C@@H]1O
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?