CCC1CN(C(=O)C2CCN(S(=O)(=O)c3c(C)noc3/C=C/c3ccccc3F)CC2)c2cc(C)ccc2O1
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?