Cc1nc(N2CCOCC2)c2c(C(=O)N3CCN(c4cccc(C(F)(F)F)c4)CC3)c(C)oc2n1
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?