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Singh AK, Kumar J, Bhadra S. Catalytic Direct Cyanomethylenation of C(sp 3)-H Bonds via a One-Step Double C-C Bond Formation. J Org Chem 2022; 87:1512-1517. [PMID: 35012315 DOI: 10.1021/acs.joc.1c02297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An elegant and catalytic procedure for the one-step cyanomethylenation of C(sp3)-H bonds adjacent to benzazoles and ketones is described herein using DMF as a C-1 unit and TMSCN as the cyanide source. The copper-mediated reaction between DMF and TMSCN gives a cyanomethylene radical intermediate that reacts with 2-alkylbenzazoles or alkylketones to furnish desired cyanomethylenated compounds under palladium catalysis. Subsequent interconversion of cyanomethylenated products makes the protocol synthetically attractive.
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Affiliation(s)
- Anupam Kumar Singh
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, Gujarat, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Jogendra Kumar
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, Gujarat, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Sukalyan Bhadra
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, Gujarat, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
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Eldrup AB, Soleymanzadeh F, Taylor SJ, Muegge I, Farrow NA, Joseph D, McKellop K, Man CC, Kukulka A, De Lombaert S. Structure-based optimization of arylamides as inhibitors of soluble epoxide hydrolase. J Med Chem 2009; 52:5880-95. [PMID: 19746975 DOI: 10.1021/jm9005302] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Inhibition of soluble epoxide hydrolase (sEH) is hypothesized to lead to an increase in circulating levels of epoxyeicosatrienoic acids, resulting in the potentiation of their in vivo pharmacological properties. As part of an effort to identify inhibitors of sEH with high and sustained plasma exposure, we recently performed a high throughput screen of our compound collection. The screen identified N-(3,3-diphenyl-propyl)-nicotinamide as a potent inhibitor of sEH. Further profiling of this lead revealed short metabolic half-lives in microsomes and rapid clearance in the rat. Consistent with these observations, the determination of the in vitro metabolic profile of N-(3,3-diphenyl-propyl)-nicotinamide in rat liver microsomes revealed extensive oxidative metabolism and a propensity for metabolite switching. Lead optimization, guided by the analysis of the solid-state costructure of N-(3,3-diphenyl-propyl)-nicotinamide bound to human sEH, led to the identification of a class of potent and selective inhibitors. An inhibitor from this class displayed an attractive in vitro metabolic profile and high and sustained plasma exposure in the rat after oral administration.
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Affiliation(s)
- Anne B Eldrup
- Department of Medicinal Chemistry, Boehringer Ingelheim Pharmaceuticals, Ridgefield, Connecticut 06877, USA.
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Park YH, Ahn HR, Canturk B, Jeon SI, Lee S, Kang H, Molander GA, Ham J. A Facile One-Pot Preparation of Potassium Hydroxyaryl- and (Hydroxyalkyl)aryltrifluoroborates. Org Lett 2008; 10:1215-8. [DOI: 10.1021/ol800083j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Young Hee Park
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Hong Ryul Ahn
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Belgin Canturk
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Sang Il Jeon
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Seokjoon Lee
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Heonjoong Kang
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Gary A. Molander
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
| | - Jungyeob Ham
- Korea Institute of Science and Technology, 290 Daejeon-dong, Gangneung 210-340, Korea, Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Center for Marine Natural Products and Drug Discovery, School of Earth and Environmental Sciences, Seoul National University, NS-80, Seoul 151-747, Korea, Department of Chemistry, Kangnung National University, Gangneung 210-702, Korea and Department of Basic Science, Kwandong University
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