AIDS-192886 AIDS192886 Carbonic acid, diethyl (7aR,15aR)-5,5a,13,13a-tetrahydro-7,15-dioxo-8H,16H-7a,15a-epidithio-7H,15H-bisoxepino[3',4':4,5]pyrrolo[1,2-a:1',2'-d]pyrazine-5,13-diyl ester