CCOC(=O)N1CCN(C(=O)c2ccc3c(=O)n(CCc4ccc(OC)c(OC)c4)c(=O)[nH]c3c2)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?