COc1ccc(-c2c(C#N)c(SCC(=O)Nc3ccc(Br)cc3)nc(C)c2C(=O)Nc2ccccc2)cc1
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?