3-(2-Hydroxy-ethoxymethyl)-2,2-dioxo-6-phenyl-2,3-dihydro-1H-2.lambda.6-thieno[3,2-c][1,2,6]thiadiazin-4-one 3-[(2-Hydroxyethoxy)methyl]-6-phenyl-thienol[3,2-c][1,2,6]thiadiazin-4(1H)-one 2,2-dioxide AIDS-104965 AIDS104965