for the following products
2-((2-Acetamido-6-oxo-1H-purin-9(6H)-yl)methoxy)propane-1,3-diyl diacetate | N-[9-[[2-(Acetyloxy)-1-[(acetyloxy)methyl]ethoxy]methyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]acetamide | Triacetylganciclovir and N-Acetyl-di-O-acetyl ganciclovir
