O=C(NCc1nc2ccccc2[nH]1)C1=C[C@H](c2ccc(C(F)(F)F)cc2)C[C@H](OCCCCO)O1
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?