CCOC(=O)c1cccc(NC(=O)CC2C(=O)N(c3ccc(C)cc3)C(=O)N2Cc2cccc(OC)c2)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?