Cc1cccc(N2CCN(C(=O)CCNS(=O)(=O)c3ccc4c(c3)CCN4C(=O)C3CC3)CC2)c1C
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?