O=C(N/C(=C\c1ccc(/C=C(\NC(=O)c2ccccc2)c2nc3ccccc3s2)cc1)c1nc2ccccc2s1)c1ccccc1
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?