O=C(c1ccc2c(c1)OCO2)[C@@H]1[C@@H]2C(=O)N(C3CCCCC3)C(=O)[C@@H]2C2c3ccccc3C=CN21
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?