1
|
Grygorenko OO, Biitseva AV, Zhersh S. Amino sulfonic acids, peptidosulfonamides and other related compounds. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
2
|
Phatake RS, Mullapudi V, Wakchaure VC, Ramana CV. Fluoride-Mediated Dephosphonylation of α-Diazo-β-carbonyl Phosphonates. Org Lett 2016; 19:372-375. [PMID: 28035831 DOI: 10.1021/acs.orglett.6b03573] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The possibility of fluoride-mediated selective dephosphonylation of α-diazo-β-carbonyl phosphonates such as the Ohira-Bestmann reagent has been proposed and executed. The resulting α-diazocarbonyl intermediates undergo a (3 + 2)-cycloaddition at room temperature with conjugated olefins and benzynes. Interestingly, under the current conditions, the resulting cycloaddition products underwent either N-acylation (with excess α-diazo-β-carbonyl phosphonates) or Michael addition (with conjugated olefins).
Collapse
Affiliation(s)
- Ravindra S Phatake
- Organic Chemistry Division, CSIR-National Chemical Laboratory , Dr. HomiBhabha Road, Pune 411008, India
| | - Venkannababu Mullapudi
- Organic Chemistry Division, CSIR-National Chemical Laboratory , Dr. HomiBhabha Road, Pune 411008, India
| | - Vivek C Wakchaure
- Organic Chemistry Division, CSIR-National Chemical Laboratory , Dr. HomiBhabha Road, Pune 411008, India
| | - Chepuri V Ramana
- Organic Chemistry Division, CSIR-National Chemical Laboratory , Dr. HomiBhabha Road, Pune 411008, India
| |
Collapse
|
3
|
Gholap SS. Pyrrole: An emerging scaffold for construction of valuable therapeutic agents. Eur J Med Chem 2015; 110:13-31. [PMID: 26807541 DOI: 10.1016/j.ejmech.2015.12.017] [Citation(s) in RCA: 228] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 12/05/2015] [Accepted: 12/10/2015] [Indexed: 12/20/2022]
Abstract
Pyrrole derivatives comprise a class of biologically active heterocyclic compounds which can serve as promising scaffolds for antimicrobial, antiviral, antimalarial, antitubercular, anti-inflammatory and enzyme inhibiting drugs. Due to their inimitable anticancer and anti-tubercular properties, researchers were inspired to develop novel pyrrole derivatives for the treatment of MDR pathogens. In the present review the main target is to focus on the development of pyrrole mimics, with emphasis based on their structure activity relationship (SAR). The present review is being obliging for the future development of pyrrole therapeutics.
Collapse
Affiliation(s)
- Somnath S Gholap
- Department of Chemistry, Padmashri Vikhe Patil College, Pravaranagar (Loni kd.), Rahata, Ahmednagar, 413713, Maharashtra, India.
| |
Collapse
|
4
|
Regioselective synthesis of pyrazoles fused with heteroaliphatic amines at the [3,4-c] edges. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
5
|
Ogiyama T, Yonezawa K, Inoue M, Watanabe T, Sugano Y, Gotoh T, Kiso T, Koakutsu A, Kakimoto S, Shishikura JI. Discovery of a 1-isopropyltetrahydroisoquinoline derivative as an orally active N-type calcium channel blocker for neuropathic pain. Bioorg Med Chem 2015; 23:4624-4637. [DOI: 10.1016/j.bmc.2015.05.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 05/19/2015] [Accepted: 05/20/2015] [Indexed: 01/23/2023]
|
6
|
Ogiyama T, Yonezawa K, Inoue M, Katayama N, Watanabe T, Yoshimura S, Gotoh T, Kiso T, Koakutsu A, Kakimoto S, Shishikura JI. Discovery of an 8-methoxytetrahydroisoquinoline derivative as an orally active N-type calcium channel blocker for neuropathic pain without CYP inhibition liability. Bioorg Med Chem 2015; 23:4638-4648. [DOI: 10.1016/j.bmc.2015.05.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 01/05/2023]
|
7
|
Brahim M, Smari I, Ben Ammar H, Ben Hassine B, Soulé JF, Doucet H. Conditions for palladium-catalyzed direct arylations of 4-bromo and 4-iodo N-substituted pyrazoles without C–Br or C–I bond cleavage. Org Chem Front 2015. [DOI: 10.1039/c5qo00093a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The Pd-catalyzed arylation at the C5 position ofN-protected pyrazole derivatives bearing bromo or iodo substituents at the C4 position is described.
Collapse
Affiliation(s)
- Mariem Brahim
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Imen Smari
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Hamed Ben Ammar
- Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (UR 11ES56)
- Université de Monastir Faculté des Sciences de Monastir
- Monastir 5000
- Tunisia
| | - Bechir Ben Hassine
- Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (UR 11ES56)
- Université de Monastir Faculté des Sciences de Monastir
- Monastir 5000
- Tunisia
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| |
Collapse
|
8
|
Li XT, Liu YH, Liu X, Zhang ZH. Meglumine catalyzed one-pot, three-component combinatorial synthesis of pyrazoles bearing a coumarin unit. RSC Adv 2015. [DOI: 10.1039/c5ra01677k] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Meglumine has been found to be an efficient catalyst for the synthesis of pyrazolylcoumarins by one-pot three-component reaction of salicylaldehyde, 4-hydroxy-6-methyl-2H-pyran-2-one, and hydrazine.
Collapse
Affiliation(s)
- Xiao-Tang Li
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Yu-Heng Liu
- The College of Preclinical Medicine
- Hebei Medical University
- Shijiazhuang 050017
- P. R. China
| | - Xin Liu
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| |
Collapse
|
9
|
Ahamad S, Gupta AK, Kant R, Mohanan K. Domino reaction involving the Bestmann–Ohira reagent and α,β-unsaturated aldehydes: efficient synthesis of functionalized pyrazoles. Org Biomol Chem 2015; 13:1492-9. [DOI: 10.1039/c4ob02365j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild, efficient and rapid domino reaction involving the Bestmann–Ohira reagent (BOR) and α,β-unsaturated aldehydes has been developed for the synthesis of densely functionalized vinylpyrazoles.
Collapse
Affiliation(s)
- Shakir Ahamad
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ashis Kumar Gupta
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ruchir Kant
- Molecular and Structural Biology Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| |
Collapse
|
10
|
Discovery of novel tetrahydroisoquinoline derivatives as orally active N-type calcium channel blockers with high selectivity for hERG potassium channels. Bioorg Med Chem 2014; 22:6899-907. [DOI: 10.1016/j.bmc.2014.10.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/16/2014] [Accepted: 10/16/2014] [Indexed: 01/08/2023]
|
11
|
Merchant RR, Allwood DM, Blakemore DC, Ley SV. Regioselective Preparation of Saturated Spirocyclic and Ring-Expanded Fused Pyrazoles. J Org Chem 2014; 79:8800-11. [DOI: 10.1021/jo501624t] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Rohan R. Merchant
- Department
of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| | - Daniel M. Allwood
- Department
of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| | - David C. Blakemore
- Neusentis
Chemistry, Pfizer Worldwide Research and Development, The Portway Building, Granta
Park, Cambridge, CB21 6GS, U.K
| | - Steven V. Ley
- Department
of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| |
Collapse
|
12
|
Winters MP, Subasinghe N, Wall M, Beck E, Brandt MR, Finley MFA, Liu Y, Lubin ML, Neeper MP, Qin N, Flores CM, Sui Z. Discovery and SAR of a novel series of 2,4,5,6-tetrahydrocyclopenta[c]pyrazoles as N-type calcium channel inhibitors. Bioorg Med Chem Lett 2014; 24:2057-61. [PMID: 24726803 DOI: 10.1016/j.bmcl.2014.03.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 12/01/2022]
Abstract
A novel series of substituted 2,4,5,6-tetrahydrocyclopenta[c]pyrazoles were investigated as N-type calcium channel blockers (Cav2.2 channels), a chronic pain target. One compound was active in vivo in the rat CFA pain model.
Collapse
Affiliation(s)
- Michael P Winters
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA.
| | - Nalin Subasinghe
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Mark Wall
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Edward Beck
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Michael R Brandt
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Michael F A Finley
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Yi Liu
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Mary Lou Lubin
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Michael P Neeper
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Ning Qin
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Christopher M Flores
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| | - Zhihua Sui
- Janssen Research and Development, LLC, 1400 McKean Rd., Spring House, PA 19477, USA
| |
Collapse
|