CCOC(=O)c1[nH]c(C)c(C(=O)C2=C(O)C(=O)N(CCCN(C)C)C2c2ccncc2)c1C
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?