Known as: 5-ethyl-2-(5-((4-(2-hydroxyethyl)piperazin-1-yl)sulfonyl)-2-propoxyphenyl)-7-propyl-3,5-dihydro-4H-pyrrolo(3,2-d)pyrimidin-4-one, 5-ethyl-2-(5-(4-(2-hydroxyethyl)piperazine-1-sulfonyl)-2-propoxyphenyl)-7-propyl-3,5-dihydro-4H-pyrrolo(3,2-d)pyrimidin-4-one