英文别名7,8-dihydro-1H-thiopyrano[4,3-d]pyrimidine-2,4(3H,5H)-dione; 2H-Thiopyrano[4,3-d]pyrimidine-2,4(3H)-dione, 1,5,7,8-tetrahydro-; 1,5,7,8-Tetrahydrothiopyrano[4,3-d]pyrimidine-2,4-dione; 1,5,7,8-tetrahydro-2H-thiopyrano[4,3-d]pyrimidine-2,4(3H)-dione 
