CCC/C=C/c1ccc(CN2C(CC(C)C)C(=O)N(Cc3cn(CC4CCCCC4)nn3)CCS2(=O)=O)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?