Synonyms: 2-(Isopropylsulfanyl)-8,8-dimethyl-5-(3,4,5-trimethoxyphenyl)-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6(3H,7H)-dione;pyrimido[4,5-b]quinoline-4,6(3H,7H)-dione, 5,8,9,10-tetrahydro-8,8-dimethyl-2-[(1-methylethyl)thio]-5-(3,4,5-trimethoxyphenyl)-