COc1cc2[nH]c(=O)n(Cc3ccc(C(=O)NC4CCN(Cc5ccccc5)CC4)cc3)c(=O)c2cc1OC
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?