COC(=O)c1cc(NC(=O)c2sc3ncn(Cc4cccc(F)c4)c(=O)c3c2C)cc(C(=O)OC)c1
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?