1,1,3-Trioxo-2H,4H-thieno[3,4-e][1,2,4]thiadiazine der. 214916-43-5 2H-Thieno[3,4-e]-1,2,4-thiadiazin-3(4H)-one, 4-ethyl-2-(2-pyridinylmethyl)-, 1,1-dioxide 4-Ethyl-2-(2-pyridylmethyl)thiopheno[3,4-e]1,2,4-thiadiazaperhydroine-1,1,3-trione AIDS-072162 AIDS072162