CC(C)C[C@@H](CNCC(=O)[C@H](Cc1c[nH]c2ccccc12)NC(=O)c1[nH]cnc1C(=O)N[C@@H](C)CN)NC(=O)c1[nH]cnc1C(=O)N[C@@H](C)C(=O)O.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?