299917-18-3 5H-Pyrrolo3,2-dpyrimidine, 5-(1,1-dimethylethyl)dimethylsilyl-7-(3aS,4S,6R,6aR)-6-(1,1-dimethylethyl)dimethylsilyloxymethyltetrahydro-2,2-dimethyl-4H-1,3-dioxolo4,5-cpyrrol-4-yl-2-fluoro-4-(phenylmethoxy)- 299917-23-0 5H-1,3-Dioxolo4,5-cpyrrole-5-carboxylic acid, 4-(1,1-dimethylethyl)dimethylsilyloxymethyltetrahydro-2,2-dimethyl-6-4-(phenylmethoxy)-5-2-(trimethylsilyl)ethoxymethyl-5H-pyrrolo3,2-dpyrimidin-7-yl-, 1,1-dimethylethyl ester, (3aR,4R,6S,6aS)-