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公开(公告)号:US06596858B2
公开(公告)日:2003-07-22
申请号:US09803765
申请日:2001-03-12
IPC分类号: C07H19167
CPC分类号: C07D473/00 , C07D473/40 , C07F9/65616 , C07F9/657181 , C07H19/16
摘要: A novel process for preparing 2-halo-6-aminopurine derivatives and their analogs is disclosed. The method comprises halogenation of 2,6-diaminopurine derivatives at the C-2 position in a specific combination of aprotic polar and nonpolar organic solvents to give the corresponding halogenated derivatives.
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公开(公告)号:US06252061B1
公开(公告)日:2001-06-26
申请号:US09274518
申请日:1999-03-23
IPC分类号: C07H19167
CPC分类号: C07D473/00 , C07D473/40 , C07F9/65616 , C07F9/657181 , C07H19/16
摘要: A novel process for preparing 2-halo-6-aminopurine derivatives and their analogs is disclosed. The method comprises halogenation of 2,6-diaminopurine derivatives at the C-2 position in a specific combination of aprotic polar and nonpolar organic solvents to give the corresponding halogenated derivatives.
摘要翻译: 公开了一种制备2-卤代-6-氨基嘌呤衍生物及其类似物的新方法。 该方法包括在非质子极性和非极性有机溶剂的特定组合中在C-2位上卤化2,6-二氨基嘌呤衍生物,得到相应的卤代衍生物。
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公开(公告)号:US2159544A
公开(公告)日:1939-05-23
申请号:US12549837
申请日:1937-02-12
IPC分类号: F02B53/00
CPC分类号: F02B53/00 , F02B2730/015 , Y02T10/17
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