Organic Chemistry: Current Research
Open Access
ISSN: 2161-0401
+44 1478 350008
ISSN: 2161-0401
+44 1478 350008
Neeraj Kumar Mishra and In Su Kim
Sungkyunkwan University, South Korea
Scientific Tracks Abstracts: Organic Chem Curr Res
Heterocyclic compounds are the most valuable sources of diverse biologically active molecules. The utility of heterocyclic structures is the ability to synthesize one library based on one core scaffold and to screen it against a variety of different receptors, yielding several active compounds. Of these, particularly the indolic scaffolds are the important substances of a large number of important compounds that occur in nature. Therefore, the invention of new synthetic routes to functionalize the indolic scaffolds continues to command wide interest due to the numerous natural products and biologically significant compounds whose structures incorporate these heterocyclic systems. In contrast, few existing methods provide efficient and regiocontrolled access to functionalize the indolic molecules. In this context, the transition metal-catalyzed C-H bond activation strategy provides a powerful vehicle for the direct assembly and functionalization of the bioactive heterocyclic molecules. This approach is highly modular and is especially well-suited for the preparation of carbon-carbon and carbonheteroatom bond due to the minimization of stoichiometric metallic waste and of the costs associated with substrate preactivation. These considerations led us to investigate the possibility of functionalization of indolic scaffolds at the C7â??position which is highly challenging in C-H activation events. Moreover, the constructed C7â??functionalized indolic compounds were tested for in vitro cytotoxicity against various human cancer cell lines and some of them were found to display most potent anticancer activity, compared to that of anticancer doxorubicin a positive control. Recent publications 1. Jeong T, Lee S H, Mishra N K, De U, Park J, et al. (2017) Synthesis and cytotoxic evaluation of n-aroylureas through rhodium(III)-catalyzed Câ??H functionalization of indolines with isocyanates. Advance Synthesis & Catalysis 359:23292336. 2. Mishra N K, Jeon M, Oh Y, Jo H, Park J, et al. (2017) Site-selective Cp*Rh(III)-catalyzed Câ??H amination of indolines with anthranils. Organic Chemistry Frontiers 4:241-249. 3. Jeon M, Mishra N K, De U, Sharma S, Oh Y, et al. (2016) Rh(III)-catalyzed Câ??H functionalization of indolines with readily accessible amidating reagent: synthesis and anticancer evaluation. The Journal of Organic Chemistry 8:98789885. 4. Jo H, Park J, Choi M, Sharma S, Jeon M, et al. (2016) Ruthenium(II)-or rhodium(III)-catalyzed grignard-type addition of indolines and indoles to activated carbonyl compounds. Advanced Synthesis & Catalysis 358:2714-2720. 5. Mishra N K, Jeong T, Sharma S, Shin Y, Han S, et al. (2015) Rhodium (III)â?catalyzed selective C-H cyanation of indolines and indoles with an easily accessible cyano source. Advanced Synthesis & Catalysis 357:1293-1298.
Neeraj Kumar Mishra completed his PhD from the Department of Chemistry, University of Delhi, Delhi, India. His research interests include synthetic organic chemistry with special reference to transition-metal catalyzed C-H activation reactions for the synthesis of bioactive molecules. He has been awarded Junior Research Fellowship (JRF) for Science Meritorious students by University Grants Commission, India, Senior Research Fellowship (SRF) by HRDG-Council for scientific Industrial Research, India and Research Associateship by HRDG-CSIR at Department of Chemistry, University of Delhi, India. He worked as NRFPostdoctoral Fellow with Professor In Su Kim at the School of Pharmacy, Sungkyunkwan University, Suwon, South Korea, from 2013 to 2016. Presently, he is working as Research Professor in School of Pharmacy, Sungkyunkwan University, Suwon, South Korea from January 2017.
Email:neerajchemistry@gmail.com