| 英文名称: | | entecavir impurity f | | 9-[(1s,3r,4s)-4-dimethylphenylsilyl-3-(benzyloxymethyl)-2-methylenecyclopentyl]guanine | | 2-amino-9-[(1s,3r,4s)-3-[(benzyloxy)methyl]-4-[dimethyl(phenyl)silyl]-2-methylidenecyclopentyl]-1,9-dihydro-6h-purin-6-one | | 2-amino-9-[(1s,3r,4s)-4-(dimethylphenylsilyl)-2-methylene-3-[(phenylmethoxy)methyl]cyclopentyl]-1,9-dihydro-6h-purin-6-one |
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