COc1ccc(-c2nnn(CC(=O)N(CCCN3CCOCC3)C(C(=O)NC3CCCC3)c3ccc(C)o3)n2)cc1
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?