CC1C(NC(=O)/C(=N/OC(C)(C)C(=O)O)c2csc(N)n2)C(=O)N1S(=O)(=O)O
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?