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Domino [4 + 2] Annulation Access to Quinone-Indolizine Hybrids: Anticancer N-Fused Polycycles.

Dirgha Raj JoshiYohan SeoYunkyung HeoSo-Hyeon ParkYechan LeeWan NamkungIkyon Kim
Published in: The Journal of organic chemistry (2020)
A highly efficient synthetic route to new quinone-indolizine hybrids was accomplished from quinones and N-substituted pyrrole-2-carboxaldehydes via a domino Michael addition-aldol condensation-aromatization sequence through which the central pyridine ring was constructed in atom-economical and environment-friendly manner. Post modification of the resulting products was also demonstrated, enabling further expansion of this heterocyclic chemical space. Biological evaluation of the quinone-indolizine hybrids revealed potent anticancer effects in human prostate adenocarcinoma cells (PC-3) and oral adenosquamous carcinoma cells (CAL-27).
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