COC(=O)C[C@H]1c2ccccc2C2=C(C[C@@H](C)[C@H]3C(=O)N(c4ccccc4)C(=O)[C@@H]23)N1C(=O)OC
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?