COc1ccc(C(OCC2OC(n3ccc(Oc4c(F)c(F)c(F)c(F)c4F)nc3=O)CC2OP(OCCC#N)N(C(C)C)C(C)C)(c2ccccc2)c2ccc(OC)cc2)cc1
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?