英文别名
                        6-benzyl-5-(2-diethylamino-ethyl)-1-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one;5-[2-(Diethylamino)ethyl]-1,5-dihydro-1-methyl-6-(phenylmethyl)-4H-pyrazolo[3,4-d]pyrimidin-4-one;6-benzyl-5-[2-(diethylamino)ethyl]-1-methylpyrazolo[3,4-d]pyrimidin-4-one