NCCCC[C@@H]1NC(=O)c2cc([N+](=O)[O-])cc(I)c2SC[C@@H](C(N)=O)NC(=O)[C@H](Cc2ccc(O)cc2)NC1=O
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?