CCOC(=O)/C=C/C1=C(Br)[C@@]2(C)CC[C@@H]3c4ccc(O)cc4CC[C@H]3[C@@H]2C1
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?