O=C(Cc1cccs1)N[C@@H]1C(=O)N2C(C(=O)OC(c3ccccc3)c3ccccc3)=C(CO)CS[C@H]12
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?