157977-95-2 AIDS-001277 AIDS001277 Bis(tert-butyloxymethoxy)oxophosphinocarboxylic acid, methyl ester Bis(tert-butyloxymethyl) methyl foscarnet Foscarnet triester Phosphinecarboxylic acid, bis[(2,2-dimethyl-1-oxopropoxy)methoxy]-, methyl ester, oxide Phosphonoformate triester