1,1,3-Trioxo-2H,4H-thieno[3,4-e][1,2,4]thiadiazine der. 2-Benzyl-4-prop-2-ynylthiopheno[3,4-e]1,2,4-thiadiazaperhydroine-1,1,3-trione AIDS-072093 AIDS072093 QM96537