CO/N=C(\C(=O)[N-]n1cn[n+](CC(=O)OC(C)(C)C)c1)c1csc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)n1
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?