Cc1c(C(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)sc2ncnc(N3CCN(c4ccccc4F)CC3)c12
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?