CCCn1c(N)c(-c2nc(C3CCCC3)c(C(=O)c3ccc(NC(C)=O)cc3)s2)c(=O)n(C)c1=O
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?