N#C/C(=C/c1cn(-c2ccccc2)nc1-c1cccc(OCc2ccc(F)cc2)c1)C(=O)NCCCn1ccnc1
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?