COc1ccc(OC)c(-c2[nH]c(C(=O)NC3CCN(Cc4ccccc4)CC3)cc3c4ccccc4nc2-3)c1
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?