Cc1cc(N2CCC(C(=O)N(CC(C)C)CC(C)C)CC2)n2nc(C)c(-c3ccc(Cl)cc3)c2n1
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?