COc1ccc(-c2ccc([C@H]3[C@H]4C=CC[C@@H](C)[C@@H]4C(=O)N3Cc3ccccc3)c(F)c2)cc1OC
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?