A phospine free hydroarylation reaction applied to norbornene derivatives is described for the first time and was exploited for the regioselective gram scale synthesis of AR-148, a known Rac1–Tiam1 PPI inhibitor. Umpolung conversion of the nitro group into free amine allowed the regiocontrol of the key arylation step via a long range effect. The effect of AR-148 in comparison with its enantiomers on Rac1 activation of has been evaluated and (−)AR-148 has been identified as the first enantiomerically pure inhibitor of Rac1–Tiam1 PPI.
Identification of the first enantiopure Rac1-Tiam1 protein-protein interaction inhibitor and its optimized synthesis: Via phosphine free remote group directed hydroarylation
Ferri, Nicola;
2019
Abstract
A phospine free hydroarylation reaction applied to norbornene derivatives is described for the first time and was exploited for the regioselective gram scale synthesis of AR-148, a known Rac1–Tiam1 PPI inhibitor. Umpolung conversion of the nitro group into free amine allowed the regiocontrol of the key arylation step via a long range effect. The effect of AR-148 in comparison with its enantiomers on Rac1 activation of has been evaluated and (−)AR-148 has been identified as the first enantiomerically pure inhibitor of Rac1–Tiam1 PPI.
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