Highly substituted purines were synthesized in good to high yields through a one-pot straightforward metal-free scalable method, using the Traube synthesis adapted to Vilsmeier-type reagents. From 5-amino-4-chloropyrimidines, new 9-aryl-substituted chloropurines and intermediates for peptide nucleic acid synthesis were prepared. Variant procedures allowing a rapid synthesis of ribonucleosides and 7-benzylpurine
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.
Regioselective N-9 arylation of purines employing arylboronic acids in the presence of Cu(II)
作者:Anne Kristin Bakkestuen、Lise-Lotte Gundersen
DOI:10.1016/s0040-4039(03)00576-8
日期:2003.4
9-Arylpurines are efficiently formed with complete regioselectivity when purines are treated with arylboronic acids in the presence of copper(II) acetate. A variety of substituents on both coupling partners are well tolerated. (C) 2003 Elsevier Science Ltd. All rights reserved.
EL-BAYOUKI, KHAIRY A. M.;EL-SAYED, ALI S.;BASYOUNI, WHAID M., GAZZ. CHIM. ITAL., 119,(1989) N, C. 163-165
作者:EL-BAYOUKI, KHAIRY A. M.、EL-SAYED, ALI S.、BASYOUNI, WHAID M.
DOI:——
日期:——
METHOD FOR SYNTHESIZING DIVERSELY SUBSTITUTED PURINES
申请人:UNIVERSITE GRENOBLE ALPES
公开号:US20210163484A1
公开(公告)日:2021-06-03
The present invention relates to a method for synthesizing diversely substituted purines starting from a pyrimidine. Formula (I). The method comprises the formation of an amidine group on the pyrimidine by implementing a Vilsmeier type reagent, the functionalization of the pyrimidine with an amine and the cyclization to form the purine nucleus. Optional steps can also be performed in order to further functionalize the molecule. The invention also relates to new purines and new intermediate product.