COC(=O)c1ccc(CN(c2ccc(C(=O)O)c(O)c2)S(=O)(=O)c2ccc(Cl)c([N+](=O)[O-])c2)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?