C=CC[C@H](CC(=O)N[C@H](CO)Cc1ccccc1)C(=O)N[C@H](COC(=O)[C@H](CC=C)CC(=O)OC(C)(C)C)Cc1c[nH]c2ccccc12
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?