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Direct C-H arylation of purine on solid phase and its use for chemical libraries synthesis

B. Vanková, V. Krchnák, M. Soural, J. Hlavác,

. 2011 ; 13 (5) : 496-500. [pub] 20110630

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc12028248

C(8)-H direct arylation of purine derivatives immobilized on Wang resin is described. The purine skeleton was immobilized via C(6)-regioselective substitution of 2,6-dichloropurine with polymer-supported amines. After N(9)-alkylation with two different alkyl iodides and C(2) substitution with two selected amines, reaction conditions for C(8)-H arylation were developed and optimized. Various aryl bromides and aryl iodides were used for the reaction affording the target 2,6,8,9-tetrasubstituted purines in very good purity. The same reaction conditions were also applied for the synthesis of 2,6,8-trisubstituted purines, however, yields were lower. The methodology is applicable for high throughput synthesis of chemical libraries comprised of purine scaffold.

Citace poskytuje Crossref.org

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