C=Cc1ccc(Cn2c(=O)n(-c3ccccc3C)c(=O)c3c4c(sc32)CN(C(C)=O)CC4)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?