Cc1ccc(CNC(=O)[C@H]2C[C@@H]2[C@H](NP(=O)(c2ccccc2)c2ccccc2)c2ccccc2)o1
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?