O=C(NCc1ccc2c(c1)OCO2)c1cc2n(n1)C(C(F)(F)F)CC(c1ccc3c(c1)OCO3)N2
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?