Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
6-(Benzyloxy)-9-((1R,3R,4R)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-6,9-dihydro-1H-purin-2-amine is an intermediate in the synthesis of Entecavir (E558900), an oral antiviral drug used in the treatment of hepatitis B infection.