COCCNC(=O)/C(C#N)=C/c1c(N2CCN(c3cccc(Cl)c3)CC2)nc2c(C)cccn2c1=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?