CC(=O)O.CCOc1ccc(NC(=O)CN2C(=O)/C(=C3\SC(=S)N(C4CCS(=O)(=O)C4)C3=O)c3ccccc32)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?