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公开(公告)号:US20110054156A1
公开(公告)日:2011-03-03
申请号:US12990336
申请日:2008-04-30
申请人: Shuihong Cheng , Yuguo Du , Baiping Ma , Lu Li , Yang Zhao
发明人: Shuihong Cheng , Yuguo Du , Baiping Ma , Lu Li , Yang Zhao
IPC分类号: C07H17/04
CPC分类号: C07J71/0031 , C07J71/0005 , C07J75/00
摘要: The invention provides a synthetic route from sarsasapogenin to timosaponin BII and related compounds. A diketone intermediate is provided, which can advantageously be used for in situ assembly of complex sugar moieties of the desired glycone end product. The diketone compound is then selectively reduced using a borohydride reducing agent to form the desired end product, certain of the end products and intermediates are novel compounds perse.
摘要翻译: 本发明提供了从萨洒皂草配基到timosaponin BII及相关化合物的合成途径。 提供二酮中间体,其可有利地用于原位组装所需糖酮终产物的复合糖部分。 然后使用硼氢化物还原剂选择性还原二酮化合物以形成所需的最终产物,某些最终产物和中间体是新化合物。