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CARBANUCLEOSIDE SYNTHESIS AND NOVEL INTERMEDIATE COMPOUNDS USEFUL THEREIN
CARBANUCLEOSIDE SYNTHESIS AND NOVEL INTERMEDIATE COMPOUNDS USEFUL THEREIN
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机译:碳核苷合成及其中使用的新型中间化合物
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摘要
Anti-virally active carbanucleosides such as entecavir are prepared by a process which utilizes, throughout the synthesis, an aromatic protectant group for the hydroxyl and the alkyl hydroxy groups of the starting material, removed as the final step of a multi-step synthesis. Such protectant groups yield intermediates which are solid and therefore easily purified at various stages of the process, for an economical and relatively fast process for synthesizing the final product.
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