(1R,2S,3R,5R)-3-(Benzyloxy)-5-(6-(benzyloxy)-2-(((4-Methoxyphenyl)diphenylMethyl)aMino)-1H-purin-9(6H)-yl)-2-((benzyloxy)Methyl)cyclopentanol

(1R,2S,3R,5R)-3-(Benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)amino)-1H-purin-9(6H)-yl)-2-((benzyloxy)methyl)cyclopentanol is an intermediate in the synthesis of Entecavir (E558900), an oral antiviral drug used in the treatment of hepatitis B infection.