Tetrahydronaphthalene derivatives, process for their production and their use as anti-inflammatory agents
申请人:Baeurle Stefan
公开号:US20070015750A1
公开(公告)日:2007-01-18
The invention relates to polysubstituted tetrahydronaphthalene derivatives of formula (I),
process for their production and their use as anti-inflammatory agents.
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.
Synthesis, Biological Activity, and SAR of Antimycobacterial 9-Aryl-, 9-Arylsulfonyl-, and 9-Benzyl-6-(2-furyl)purines
作者:Anne Kristin Bakkestuen、Lise-Lotte Gundersen、Bibigul T. Utenova
DOI:10.1021/jm0408924
日期:2005.4.1
9-Aryl-, 9-arylsulfonyl- and 9-benzyl-6-(2-furyl)purines were synthesized by N-alkylation or N-arylation of the purine followed by Stille coupling to introduce the faryl substituent in the 6-position and the compounds screened for activity against Mycobacterium tuberculosis. The 9-aryl- and 9-sulfonylarylpurines exhibited weak activity toward the bacteria, but 9-benzylpurines were good inhibitors especially those carrying electron-donating substituents on the phenyl ring. A chlorine atom in the purine 2-position further enhanced activity. The high antimycobacterial activity (MIC 0.39,mu g/mL against M. tuberculosis), low toxicity against mammalian cells and activity inside macrophages found for 2-chloro-6-(2-furyl)-9-(4-methoxyphenylmethyl)9H-purine makes this compound a highly interesting potential antituberculosis drug.