1
|
Rearrangements of polyaza(oxa-,thia-)heterocyclic carbanions in organic synthesis. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3133-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
2
|
Sridevi B, Reddy Kandimalla S, Subba Reddy BV. Oxidative sp 3
C-H Functionalization of Methyl Substituted Aza-Aromatics: An Easy Access to N
-Fused Polyheterocycles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Bhima Sridevi
- Fluoro-Agrochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500-007 India
- Academy of Scientific and Innovative Research; New Delhi 110025 India
| | - Satheeshkumar Reddy Kandimalla
- Fluoro-Agrochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500-007 India
- Academy of Scientific and Innovative Research; New Delhi 110025 India
| | - B. V. Subba Reddy
- Fluoro-Agrochemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500-007 India
- Academy of Scientific and Innovative Research; New Delhi 110025 India
| |
Collapse
|
3
|
Frett B, McConnell N, Kharbanda A, Naresh G, Rounseville B, Warner C, Chang J, Debolske N, Li HY. Selective, C-3 Friedel-Crafts acylation to generate functionally diverse, acetylated Imidazo[1,2- a]pyridine derivatives. Tetrahedron 2018; 74:4592-4600. [PMID: 30344351 PMCID: PMC6192254 DOI: 10.1016/j.tet.2018.07.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Carbon-carbon bonds are integral for pharmaceutical discovery and development. Frequently, C-C bond reactions utilize expensive catalyst/ligand combinations and/or are low yielding, which can increase time and expenditures in pharmaceutical development. To enhance C-C bond formation protocols, we developed a highly efficient, selective, and combinatorially applicable Friedel-Crafts acylation to acetylate the C-3 position of imidazo[1,2-a]pyridines. The reaction, catalyzed by aluminum chloride, is both cost effective and more combinatorial friendly compared to acetylation reactions requiring multiple, stoichiometric equivalents of AlCl3. The protocol has broad application in the construction of acetylated imidazo[1,2-a]pyridines with an extensive substrate scope. All starting materials are common and the reaction requires inexpensive, conventional heating methods for adaptation in any laboratory. Further, the synthesized compounds are predicted to possess GABA activity through a validated, GABA binding model. The developed method serves as a superior route to generate C-3 acetylated imidazo[1,2-a]pyridine building-blocks for combinatorial synthetic efforts.
Collapse
Affiliation(s)
- Brendan Frett
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Nicholas McConnell
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, 1703 E. Mabel, Tucson, AZ 85721, USA
| | - Anupreet Kharbanda
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Gunaganti Naresh
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Benjamin Rounseville
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, 1703 E. Mabel, Tucson, AZ 85721, USA
| | - Christina Warner
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, 1703 E. Mabel, Tucson, AZ 85721, USA
| | - John Chang
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, 1703 E. Mabel, Tucson, AZ 85721, USA
| | - Natalie Debolske
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, 1703 E. Mabel, Tucson, AZ 85721, USA
| | - Hong-yu Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| |
Collapse
|
4
|
Mani GS, Rao AVS, Tangella Y, Sunkari S, Sultana F, Namballa HK, Shankaraiah N, Kamal A. Molecular iodine-catalysed oxidative CO–C(alkyl) bond cleavage of aryl/heteroaryl alkyl ketones: an efficient strategy to access fused polyheterocycles. NEW J CHEM 2018. [DOI: 10.1039/c8nj03417f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An efficient molecular iodine-catalysed one-pot strategy has been accomplished for the construction of various fused heterocycles under metal and oxidant free conditions.
Collapse
Affiliation(s)
- Geeta Sai Mani
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research
- Hyderabad-500037
- India
| | - Ayanampudi Venkata Subba Rao
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Yellaiah Tangella
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Satish Sunkari
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Faria Sultana
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Hari Krishna Namballa
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research
- Hyderabad-500037
- India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research
- Hyderabad-500037
- India
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research
- Hyderabad-500037
- India
- Division of Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
| |
Collapse
|
5
|
N'Guessan JPDU, Delaye PO, Pénichon M, Charvet CL, Neveu C, Ouattara M, Enguehard-Gueiffier C, Gueiffier A, Allouchi H. Discovery of imidazo[1,2-a]pyridine-based anthelmintic targeting cholinergic receptors of Haemonchus contortus. Bioorg Med Chem 2017; 25:6695-6706. [DOI: 10.1016/j.bmc.2017.11.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/26/2017] [Accepted: 11/05/2017] [Indexed: 01/25/2023]
|
6
|
Sunkari S, Shaik SP, Krishna NH, Subba Rao AV, Kodiripaka BG, Alarifi A, Kamal A. Molecular Iodine-Promoted Transimination for the Synthesis of 6-Phenylpyrido[2′,1′:2,3]imidazo[4,5-c
]quinoline and 6-(Pyridin-2-yl)pyrido[2′,1′:2,3]imidazo[4,5-c
]quinolines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Satish Sunkari
- Division of Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Siddiq Pasha Shaik
- Division of Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Namballa Hari Krishna
- Division of Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Hyderabad 500036 India
| | - Ayanampudi Venkata Subba Rao
- Division of Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Department of Pharmacology and Molecular Sciences; Johns Hopkins School of Medicine; 725 North Wolfe St. Baltimore Maryland 21205 United States
| | | | - Abdullah Alarifi
- Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Ahmed Kamal
- Division of Medicinal Chemistry and Biotechnology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Hyderabad 500036 India
- Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| |
Collapse
|
7
|
Pattison G, Sandford G, Wilson I, Yufit DS, Howard JA, Christopher JA, Miller DD. Polysubstituted and ring-fused pyridazine systems from tetrafluoropyridazine. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
8
|
Synthesis, radiolabeling and preliminary in vivo evaluation of multimodal radiotracers for PET imaging and targeted radionuclide therapy of pigmented melanoma. Eur J Med Chem 2015; 92:818-38. [DOI: 10.1016/j.ejmech.2015.01.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/13/2015] [Accepted: 01/19/2015] [Indexed: 12/27/2022]
|
9
|
Frett B, McConnell N, Smith CC, Wang Y, Shah NP, Li HY. Computer aided drug discovery of highly ligand efficient, low molecular weight imidazopyridine analogs as FLT3 inhibitors. Eur J Med Chem 2015; 94:123-31. [PMID: 25765758 DOI: 10.1016/j.ejmech.2015.02.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 02/19/2015] [Accepted: 02/27/2015] [Indexed: 12/16/2022]
Abstract
The FLT3 kinase represents an attractive target to effectively treat AML. Unfortunately, no FLT3 targeted therapeutic is currently approved. In line with our continued interests in treating kinase related disease for anti-FLT3 mutant activity, we utilized pioneering synthetic methodology in combination with computer aided drug discovery and identified low molecular weight, highly ligand efficient, FLT3 kinase inhibitors. Compounds were analyzed for biochemical inhibition, their ability to selectively inhibit cell proliferation, for FLT3 mutant activity, and preliminary aqueous solubility. Validated hits were discovered that can serve as starting platforms for lead candidates.
Collapse
Affiliation(s)
- Brendan Frett
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ 85721, USA
| | - Nick McConnell
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ 85721, USA
| | - Catherine C Smith
- Division of Hematology/Oncology, University of California, San Francisco, CA, USA
| | - Yuanxiang Wang
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ 85721, USA
| | - Neil P Shah
- Division of Hematology/Oncology, University of California, San Francisco, CA, USA; Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA
| | - Hong-yu Li
- College of Pharmacy, Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ 85721, USA; The University of Arizona Cancer Center, 1515 N Campbell Ave, Tucson, AZ 85724, USA.
| |
Collapse
|
10
|
Pandey AK, Sharma R, Singh A, Shukla S, Srivastava K, Puri SK, Kumar B, Chauhan PMS. Synthesis of biologically active pyridoimidazole/imidazobenzothiazole annulated polyheterocycles using cyanuric chloride in water. RSC Adv 2014. [DOI: 10.1039/c4ra03415e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient and mild protocol for rapid access to N-fused polyheterocycles via Pictet–Spengler type 6-endo cyclization by cyanuric chloride in aqueous medium has been developed.
Collapse
Affiliation(s)
- Anand Kumar Pandey
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Rashmi Sharma
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Awantika Singh
- Sophisticated Analytical Instrument Facility
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Sanjeev Shukla
- Sophisticated Analytical Instrument Facility
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Kumkum Srivastava
- Division of Parasitology
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Sunil K. Puri
- Division of Parasitology
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Brijesh Kumar
- Sophisticated Analytical Instrument Facility
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Prem M. S. Chauhan
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow, India
| |
Collapse
|
11
|
Henry N, Thiery E, Petrignet J, Halouchi H, Thibonnet J, Abarbri M. Domino Benzylic-Amination-Sonogashira-Heterocyclisation Reaction: Direct Access to Dipyrido[1,2-a:3′,4′-d]imidazole Salts. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
12
|
Masurier N, Debiton E, Jacquemet A, Bussière A, Chezal JM, Ollivier A, Tétégan D, Andaloussi M, Galmier MJ, Lacroix J, Canitrot D, Teulade JC, Gaudreault RC, Chavignon O, Moreau E. Imidazonaphthyridine systems (part 2): Functionalization of the phenyl ring linked to the pyridine pharmacophore and its replacement by a pyridinone ring produces intriguing differences in cytocidal activity. Eur J Med Chem 2012; 52:137-50. [DOI: 10.1016/j.ejmech.2012.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 03/02/2012] [Accepted: 03/06/2012] [Indexed: 11/27/2022]
|
13
|
Ducray R, Boutron P, Didelot M, Germain H, Lach F, Lamorlette M, Legriffon A, Maudet M, Ménard M, Pasquet G, Renaud F, Simpson I, Young GL. A versatile route to 3-(pyrimidin-4-yl)-imidazo[1,2-a]pyridines and 3-(pyrimidin-4-yl)-pyrazolo[1,5-a]pyridines. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
14
|
Cartwright MW, Convery L, Kraynck T, Sandford G, Yufit DS, Howard JA, Christopher JA, Miller DD. Dipyrido[1,2-a;3′,4′-d]imidazole systems. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.11.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
15
|
Hilmy Elnagdi M, Al-Awadi NA, Abdelshafy Abdelhamid I. Chapter 1 Recent Developments in Pyridazine and Condensed Pyridazine Synthesis. ADVANCES IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1016/s0065-2725(08)00201-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
16
|
A convenient synthesis of linear pyridinoimidazo[1,2-a]pyridine and pyrroloimidazo[1,2-a]pyridine cores. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.223] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
17
|
Kawano T, Kato N. One-pot Synthesis of 3-Bromoimidazo[1,2-a]pyridine Derivatives Accompanied by Dimethyl Sulfoxide Oxidation. CHEM LETT 2006. [DOI: 10.1246/cl.2006.270] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
18
|
Chapter 6.2 Six-membered ring systems: Diazines and benzo derivatives. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0959-6380(05)80055-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
19
|
Chavignon O, Andaloussi M, M. Chezal J, Moreau E, Lartigue C, El Laghdach A, C. Teulade J. Preliminary Study of Palladium Catalyzed Iminoannulation in an Imidazo[1,2-a]pyridine Series. HETEROCYCLES 2005. [DOI: 10.3987/com-05-10340] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
20
|
Chezal JM, Moreau E, Desbois N, Blache Y, Chavignon O, Teulade JC. Synthesis of carbamoylpyridine and imidazo[1,5-a]pyridin-1,3-diones via ortho-acetalhydantoin intermediates. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.10.200] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|