COc1ccc(CCN2C(=O)C3C4C=CC(C3C2=O)C2C(=O)N(CCc3ccc(OC)c(OC)c3)C(=O)C42)cc1OC
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?