Cc1ccc([C@H]2C(C(=O)O)=CC[C@@H](c3ccc(Cl)cc3)N2S(=O)(=O)c2ccc(C)cc2)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?