O=C(O)C(F)(F)F.O=C1C2=C(C3=NCCc4c[nH]c1c43)c1c(cc(Br)c(O)c1Br)CCN2
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?