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Synthetic protocols and applications of copper(I) phosphine and copper(I) phosphine/diimine complexes. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Hayatgheybi S, Khosravi H, Zahedian Tejeneki H, Rominger F, Bijanzadeh HR, Balalaie S. Synthesis of N-(Isoquinolin-1-yl)sulfonamides via Ag 2O-Catalyzed Tandem Reaction of ortho-Alkynylbenzaldoximes with Benchtop Stabilized Ketenimines. Org Lett 2021; 23:3524-3529. [PMID: 33851841 DOI: 10.1021/acs.orglett.1c00937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this project, a moderately efficient approach to multisubstituted N-(isoquinolin-1-yl)sulfonamide derivatives was illustrated, utilizing ortho-alkynylbenzaldoximes and zwitterionic ketenimine salts in a tandem reaction catalyzed by silver oxide. The oxophilicity of Ag2O, along with its nature as Lewis acid, pave the way for a smooth [3 + 2] cycloaddition between isoquinoline N-oxides and ketenimine species, which is a key step in this reaction. DFT calculation suggests that 1,3-dipolar cycloaddition of nitrone and ketenimine proceeds through a selective stepwise mechanism.
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Affiliation(s)
- Sepideh Hayatgheybi
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran
| | - Hormoz Khosravi
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran
| | - Hossein Zahedian Tejeneki
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran
| | - Frank Rominger
- Organisch-Chemisches Institut der Universitaet Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hamid Reza Bijanzadeh
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, 14117-13116 Tehran, Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, 19697-64499 Tehran, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences, 67158-47141 Kermanshah, Iran
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Mottinelli M, Sinreih M, Rižner TL, Leese MP, Potter BVL. N-Phenyl-1,2,3,4-tetrahydroisoquinoline: An Alternative Scaffold for the Design of 17β-Hydroxysteroid Dehydrogenase 1 Inhibitors. ChemMedChem 2020; 16:259-291. [PMID: 33151004 DOI: 10.1002/cmdc.202000762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Indexed: 11/08/2022]
Abstract
17β-Hydroxysteroid dehydrogenases catalyse interconversion at the C17 position between oxidized and reduced forms of steroidal nuclear receptor ligands. The type 1 enzyme, expressed in malignant cells, catalyses reduction of the less-active estrone to estradiol, and inhibitors have therapeutic potential in estrogen-dependent diseases such as breast and ovarian cancers and in endometriosis. Synthetic decoration of the nonsteroidal N-phenyl-1,2,3,4-tetrahydroisoquinoline (THIQ) template was pursued by using Pomeranz-Fritsch-Bobbitt, Pictet-Spengler and Bischler-Napieralski approaches to explore the viability of this scaffold as a steroid mimic. Derivatives were evaluated biologically in vitro as type 1 enzyme inhibitors in a bacterial cell homogenate as source of recombinant protein. Structure-activity relationships are discussed. THIQs possessing a 6-hydroxy group, lipophilic substitutions at the 1- or 4-positions in combination with N-4'-chlorophenyl substitution were most favourable for activity. Of these, one compound had an IC50 of ca. 350 nM as a racemate, testifying to the applicability of this novel approach.
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Affiliation(s)
- Marco Mottinelli
- Wolfson Laboratory of Medicinal Chemistry Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, BA2 7AY, Bath, UK.,Present address: Department of Medicinal Chemistry School of Pharmacy, University of Florida, 1345 Center Dr., Gainesville, FL 32611, USA
| | - Maša Sinreih
- Institute of Biochemistry Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia
| | - Tea L Rižner
- Institute of Biochemistry Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000, Ljubljana, Slovenia
| | - Mathew P Leese
- Wolfson Laboratory of Medicinal Chemistry Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, BA2 7AY, Bath, UK
| | - Barry V L Potter
- Drug Discovery & Medicinal Chemistry Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.,Wolfson Laboratory of Medicinal Chemistry Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, BA2 7AY, Bath, UK
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Alexander JR, Cook MJ. Formation of Ketenimines via the Palladium-Catalyzed Decarboxylative π-Allylic Rearrangement of N-Alloc Ynamides. Org Lett 2017; 19:5822-5825. [DOI: 10.1021/acs.orglett.7b02780] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juliana R. Alexander
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland
- Department
of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Matthew J. Cook
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland
- Department
of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
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Liu S, Lei Y, Qi X, Lan Y. Reactivity for the Diels–Alder Reaction of Cumulenes: A Distortion-Interaction Analysis along the Reaction Pathway. J Phys Chem A 2014; 118:2638-45. [DOI: 10.1021/jp411914u] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Song Liu
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Yu Lei
- Department
of Emergency, First Hospital, Jilin University, Changchun, China
| | - Xiaotian Qi
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Yu Lan
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
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Affiliation(s)
- Annette D. Allen
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Thomas T. Tidwell
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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