Synonyms: [1]Benzothieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one, 8-(1,1-dimethylethyl)-6,7,8,9-tetrahydro-1-mercapto-4-(phenylmethyl)-;4-Benzyl-8-tert-butyl-1-sulfanyl-6,7,8,9-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one