2,3-dihydro-3-hydroxy-2-imino-6-(1-piperidinyl)-4-pyrimidinamine ;2,4-diamino-6-piperidinilpirimidina-3-ossido ;2,4-diamino-6-piperidino-pyrimidin3-oxide ;2,4-diamino-6-piperidinopyrimidine3-n-oxide ;4-pyrimidinediamine,6-(1-piperidinyl)-3-oxide ;6-amino-1,2-dihydro-1-hydroxy-2-imino-4-piperidinopyrimidine ;6-piperidino-2,4-diaminopyrimidine3-oxide ;alopexil