Synthesis of Pyridinyl-Pyrimidines via Pd-Catalyzed Cross-Coupling Reactions: A Comparison of Classical Thermal and Microwave Assisted Reaction Conditions
作者:Peter Stanetty、Michael Schnürch、Marko D. Mihovilovic
DOI:10.1055/s-2003-41414
日期:——
The Negishi cross-coupling reaction was used for the synthesis of pyridinyl-pyrimidines utilizing classical thermal or microwave assisted conditions. The organozinc substrates were prepared from 2-fluoro-4-iodopyridine byconventional lithiation chemistry and subsequent transmetalation with ZnCl 2 or ZnI 2 . Two different catalysts - Pd(PPh 3 ) 4 and Pd/C - were investigated for their ability to facilitate
Novel and Efficient Access to Phenylamino-pyrimidine Type Protein Kinase C Inhibitors Utilizing a Negishi Cross-Coupling Strategy
作者:Peter Stanetty、Gregor Hattinger、Michael Schnürch、Marko D. Mihovilovic
DOI:10.1021/jo0505223
日期:2005.6.1
Negishi-type cross-coupling reaction in the key step followed by two subsequent nucleophilic substitution reactions. This strategy represents a versatile and robust protocol to access diverse analogues of the title compound for subsequent SAR studies as potential phenylamino-pyrimidine type proteinkinaseCinhibitors.
Synthesis of analogs of the phenylamino-pyrimidine type protein kinase C inhibitor CGP 60474 utilizing a Negishi cross-coupling strategy
作者:Peter Stanetty、Jürgen Röhrling、Michael Schnürch、Marko D. Mihovilovic
DOI:10.1016/j.tet.2005.11.067
日期:2006.3
Analogs of 3-4-[2-(3-chlorophenylamino)-pyrimidin-4-yl]-pyridin-2-yl-amino}-propanol (CGP 60474) were synthesized as useful models for the evaluation of structure-activity relationships of phenylamino-pyrimidine-type protein kinase C inhibitors. The approach involved Pd-assisted cross-coupling as the key step. Negishi-type coupling was performed both with free amino functionalities and Boc-protected amines present and showed that the protection-cross-coupling-deprotection sequence leads to significantly higher yields. (c) 2005 Elsevier Ltd. All rights reserved.
PYRIDINE UND DEREN DERIVATE ALS BAUSTEINE ZUR VERWENDUNG IN OPTOELEKTRONISCHEN BAUELEMENTEN