Synonyms: Mtp 3631;Mtp-3631;AC1O46T6;139086-70-7;3-Piperidinol, 1-(7,8-dihydro-2-(1-piperazinyl)-6H-thiopyrano(3,2-d)pyrimidin-4-yl)-, S,S-dioxide;4-(3-hydroxypiperidin-1-yl)-2-piperazin-1-yl-7,8-dihydro-6H-pyrano[3,2-d]pyrimidine-6-sulfinate;7,8-Dihydro-4-(3-hydroxypiperidinyl)-2-piperazinyl-6H-thiopyrano(3,2-d)pyrimidine-5,5-dioxide