COc1ccc(-c2noc(N(c3ccc(F)c(Cl)c3)c3nc(-c4ccc(OC)c(OC)c4)no3)n2)cc1OC
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?