Cc1ccc2oc(C(=O)Nc3c(C(=O)c4ccc(C)c(F)c4)oc4ccccc34)cc(=O)c2c1
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?