C[C@@H]1CN([C@H](C)CO)C(=O)Cc2cc(NC(=O)Cn3cnnn3)ccc2O[C@@H]1CN(C)Cc1ccc(Cl)c(Cl)c1
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?