COc1cc(NC(=O)CSc2nc(C)c(C(=O)Nc3ccccc3)c(-c3ccc(OC)c(OC)c3)c2C#N)c(OC)cc1Cl
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?