CC(=O)Nc1ccc(S(=O)(=O)NCC2CCC(C(=O)NC(C)c3ccc4c(c3)OCCO4)CC2)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?