4-Amino-8-[5-(azetidinylcarbonyl)(1,2,3-triazolyl)]-1,7-dioxa-9-(1,1,2,2-tetramethyl-1-silapropoxy)-6-[(1,1,2,2-tetramethyl-1-silapropoxy)methyl]-2-thiaspiro[4.4]non-3-ene-2,2-dione AIDS-072129 AIDS072129 TSAO 1,2,3-triazole deriv.