A Novel Method for the Introduction of Fluorine into the Purine 2-Position: Synthesis of 2-Fluoroadenosine and a Formal Synthesis of the Antileukemic Drug Fludarabine
A Novel Method for the Introduction of Fluorine into the Purine 2-Position: Synthesis of 2-Fluoroadenosine and a Formal Synthesis of the Antileukemic Drug Fludarabine
The invention provides an antimycobacterial 6-aryl-9-(m- or p-substituted-benzyl) purine and purine analog compounds.
这项发明提供了一种抗分枝杆菌的6-芳基-9-(m-或p-取代苄基)嘌呤和嘌呤类似化合物。
Synthesis of 8-Bromo-<i>N</i>-benzylpurines via 8-Lithiated Purines: Scope and Limitations
作者:Thywill Gamadeku、Lise-Lotte Gundersen
DOI:10.1080/00397910903318708
日期:2010.8.16
9-Benzylpurines have been lithiated in the 8-position and subsequently brominated when trapped with BrCCl2CCl2Br. The 8-bromopurines were isolated in excellent yields when the benzyl group carried an alkoxy or alkyl group in the ortho or para position. Without these substituents, the conversion was generally less, and formation of 8,8'-purinyl dimers was observed. There was also evidence of debenzylation in some instances. Bromination of 7-benzylpurines employing the same set of reaction conditions has also been achieved.
A Novel Method for the Introduction of Fluorine into the Purine 2-Position: Synthesis of 2-Fluoroadenosine and a Formal Synthesis of the Antileukemic Drug Fludarabine
作者:Lise-Lotte Gundersen、Morten Brændvang
DOI:10.1055/s-2006-942544
日期:——
A novel method for the introduction of fluorine in the purine 2-position is described and employed in the synthesis of a potential antimycobacterial compound. Also 2-fluoroadenosine has been synthesized for the first time from adenosine with perbenzoylated 2-nitroadenosine as a key intermediate. Mild reaction conditions are employed and few synthetic steps are required. The novel synthesis of fluoroadenosine can be regarded as a formal synthesis of the antileukemic drug fludarabine phosphate.