AIDS-122966 AIDS122966 Methyl-2-({[(5-{3-[3-(3-{9-amino-3,6-dioxa-7,7-dioxo-1-(1,1,2,2-tetramethyl-1-silapropoxy)-4-[(1,1,2,2-tetramethyl-1-silapropoxy)methyl]-7-thiaspiro[4.4]non-8-en-2-yl}-5-methyl-2,6-dioxo(1,3-dihydropyrimidinyl))propyl]-5-methyl-2,4-dioxo(1,3-dihydropyrimidinyl)}(2-2,5-dihydrofuryl))methoxy]phenoxycarbonyl}amino)propanoate