1,3-dimethyl-6-[3-(4-nitroanilino)propylamino]-2,4-(1H,3H)-pyrimidinedione 、
1,3-dimethyl-6-{2-[2-(4-nitrophenyl)ethylamino]-ethylamino}-2,4(1H,3H)-pyrimidinedione 以to obtain 1,3-dimethyl-6-[2-(4-nitrobenzylamino)ethylamino]-2,4(1H,3H)-pyrimidinedione的产率得到1,3-dimethyl-6-[2-(4-nitrobenzylamino)ethylamino]-2,4(1H,3H)-pyrimidinedione