The bifunctional phosphorylating reagent N-morpholino O, O-bis [(6-trifluoromethyl) benzotriazolyl] phosphate was used for the preparation of ribosyl zeatin 5'-phosphate 1b and N6-(Δ2-Isopentenyl) adenosine 5'-phosphate 2b, whereas the monofuntional phosphitylating reagent 2-chloro-4H-1, 3, 2-benzodioxaphosphorin-4-one was used for the preparation of ribosyl zeatin allylic phosphate 1d and ribosyl zeatin diphosphate 1c.
