CC(C)(C)OC(=O)C[C@@H]1C/C=C\C[C@@H](CC(=O)N(CCO)Cc2ccccc2)C(=O)N[C@H](C(C)(C)C)COC1=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?