CCCCN1CC(=O)N2[C@H]3c4ccc(OC)cc4OC[C@@H]3[C@H](c3ccccc3)[C@]2(C)C1=O
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?