4Bisacchi G S, Sundeen J E. Improved process for preparing the antiviral agent [ IS-( lα, 3α, 4β) ] -2-amino- 1 , 9-dihydro-9-[ 4-hydroxy-3-(hydroxymethyl)-2-methyl- enecycl-opentyl]-6H-purin-6-one: WO, 9809964 [ P ]. 1998-03-12.
5Pendri Y R, Chen C H, Patel S S, et al. Process for pre-paring the antiviral agent [ 1S-( lalpha, 3alpha, 4beta) ] -2-amino-1, 9-dihydro-9-[4-hydroxy-3-( hydroxy- methyl)-2-methylenecyclo ] : WO, 2004052310 [ P ]. 2004-06-24.
6Boeckman Jr. R K, Shao P C, Mullins J J. The Dess-Martin periodinane: 1, 1, 1-triacetoxy-1 , 1-dihydro-1 , 2-benz-iodoxol-3 ( 1H )-one [ J ]. Organic Syntheses, 2004, 10: 696-701.
7Ting T, Chang MD, Robert G, et al. A comparison of entecavirand lamivudine for HBeAg-positive chronic hepatitis B [J]. NEngl JMedy 2006, 354(10): 1001-1010.
8Bisacchi GS, Chao ST, Bachard C. BMS-200475, a novelcarbocyclic 2'-deoxyguanosine analog with potent andselective anti-hepatitis B vims activity in vitro [J]. BioorgMed Chem Lett, 1997,7(2): 127-132.
