A 131701, 3-[2-[(3aR,9bR)-1,3,3a,4,5,9b-Hexahydro-6-methoxy-2H-benz[e]isoindol-2-yl]ethyl]pyrido[2,3:4,5]thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione, 3-(2-((3aR,9bR)-6-Methoxy-3,3a,4,5-tetrahydro-1H-benzo[e]isoindol-2(9bH)-yl)ethyl)pyrido[2,3:4,5]thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione,