142217-79-6

N-oxide impurity2 Entecavir Impurity 2 Entecavir Impurity 14 EntecavirinterMediate Entecavir Impurity 54 Entecavir interMediate 6 (2R,3S,5S)-3-(Benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)-amino)-9H-purin (2R,3S,5S)-3-(Benzyloxy)-5-(6-(benzyloxy)-2-(((4-methoxyphenyl)diphenylmethyl)-amino)-9H-purin-9- (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(benzyloxy)-9H-purin-9-yl]-2-(benzyloxymethyl)cyclopentanone (2R,3S,5S)-3-(Benzyloxy)-5-(6-(benzyloxy)-2-(((4-Methoxyphenyl)diphenylMethyl)aMino)-9H-purin-9-yl)-2-((benzyloxy)Methyl)cyclopentanone (2R,3S,5S)-5-[2-[[(4-methoxyphenyl)-diphenylmethyl]amino]-6-phenylmethoxypurin-9-yl]-3-phenylmethoxy-2-(phenylmethoxymethyl)cyclopentan-1-one Cyclopentanone, 5-[2-[[(4-methoxyphenyl)diphenylmethyl]amino]-6-(phenylmethoxy)-9H-purin-9-yl]-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]-, (2R,3S,5S)- (2R,3S,5S)-3-(Benzyloxy)-5-[2-[[(4-Methoxyphenyl)diphenylMethyl]aMino]-6-(benzyloxy)-9H-purin-9-yl]-2-(benzyloxyMethyl)cyclopentanone (interMediate step 5)