COC(=O)[C@H](Cc1c[nH]c2ccccc12)n1cc(-c2cc(C(=O)N3CCNCC3)cc(-c3cn([C@@H](CC(C)C)C(=O)O)nn3)c2)nn1.Cl
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?