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公开(公告)号:US5688925A
公开(公告)日:1997-11-18
申请号:US441210
申请日:1995-05-15
IPC分类号: A61K31/70 , A61K31/7042 , A61K31/7048 , A61K31/7135 , A61P35/00 , C07H1/00 , C07H13/04 , C07H17/04 , C07H23/00
摘要: Demethylepipodophyllotoxin-.beta.-glucosides are prepared by allowing demethylepipodophyllotoxin to react with a 2,3-di-O-ester of a 1-O-trialkylsilyl-4,6-O-alkylidene-.beta.-D-glucose derivative in the presence of a Lewis acid. The 4,6-O-alkylidene group can be alkylidene, arylalkylidene, or heteroarylalkylidene and the 2,3-ester can be lower alkanoyl or haloacetyl. In a typical embodiment, demethylepipodophyllotoxin is allowed to react with 4,6-O-ethylidene-2,3-di-O-acetyl-1-O-trimethylsilyl-.beta.-D-glucose in the presence of boron trifluoride etherate to yield etoposide 2",3"-diacetate.
摘要翻译: 去甲表鬼臼毒素-β-葡糖苷是通过使脱甲基表鬼臼毒素与1-O-三烷基甲硅烷基-4,6-O-亚烷基-β-D-葡萄糖衍生物的2,3-二-O-酯在 路易斯酸。 4,6-亚烷基可以是亚烷基,芳基亚烷基或杂芳基亚烷基,2,3-酯可以是低级烷酰基或卤代乙酰基。 在典型的实施方案中,在三氟化硼乙醚合物的存在下,使甲基表鬼臼毒素与4,6-O-亚乙基-2,3-二-O-乙酰基-1-O-三甲基甲硅烷基-β-D-葡萄糖反应,得到依托泊苷 2“,3” - 二乙酸酯。