COc1cc(OC)cc(C(=O)N2CCC(N3CCN(c4ccccc4OC)CC3)CC2)c1.O=C(O)C(F)(F)F
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?