1
|
Chong YK, Ong YS, Yeong KY. Unveiling sultam in drug discovery: spotlight on the underexplored scaffold. RSC Med Chem 2024; 15:1798-1827. [PMID: 38911171 PMCID: PMC11187559 DOI: 10.1039/d3md00653k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/14/2024] [Indexed: 06/25/2024] Open
Abstract
Decades ago, the application of cyclic sulfonamide (sultam) and its derivatives primarily focused on their antibacterial properties. However, recent years have seen a shift in research attention towards exploring their potential as anticancer, anti-inflammatory, antidiabetic, and antiviral agents. Despite this broadening scope, only a few sultam drugs have made it to the commercial market, as much of the research on sultams remains in the discovery phase. This class of compounds holds significant promise and remains pertinent in pharmaceutical research. Due to sultam's relevance and growing importance in drug discovery, this review paper aims to consolidate and examine the biological activities of sultam derivatives ranging from 4 to 8-membered ring structures.
Collapse
Affiliation(s)
- Yie Kie Chong
- School of Science, Monash University Malaysia Campus Jalan Lagoon Selatan 47500 Bandar Sunway Selangor Malaysia
| | - Yee Swen Ong
- School of Science, Monash University Malaysia Campus Jalan Lagoon Selatan 47500 Bandar Sunway Selangor Malaysia
| | - Keng Yoon Yeong
- School of Science, Monash University Malaysia Campus Jalan Lagoon Selatan 47500 Bandar Sunway Selangor Malaysia
| |
Collapse
|
2
|
Du Y, Li Q, Wang T, Wang YQ. Enantioselective Synthesis of Biphenyl-Bridged ϵ-Sultams by Organocatalytic Mannich Reactions of Cyclic N-Sulfonylimines with Unactivated Ketones. Chemistry 2024; 30:e202302904. [PMID: 37936501 DOI: 10.1002/chem.202302904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/09/2023]
Abstract
A highly enantioselective Mannich reaction of biphenyl-bridged seven-membered cyclic N-sulfonylimines with methyl alkyl ketones is disclosed in this study. The reaction was performed under organocatalysis by using a quinine-derived primary amine as the catalyst in combination with a Brønsted acid as the co-catalyst. High yields (up to 89 %) and excellent enantioselectivities (up to 97 % ee) were observed. For methyl alkyl ketones containing a larger alkyl substituent, specific regioselective addition to the C=N bond is favored at the methyl group. On the contrary, ketones containing a smaller alkyl substituent or hydroxyacetone substrates gave major syn selective Mannich products at the methylene group.
Collapse
Affiliation(s)
- Ying Du
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Qian Li
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Tao Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - You-Qing Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| |
Collapse
|
3
|
Banuprakash Goud S, Lal Dhakar R, Samanta S. Copper(I)-Photocatalyzed Diastereoselective Aziridination of N-Sulfonyl Imines with Vinyl Azides: Application to Benzo[f][1,2,3]oxathiazepines Dioxides and Fused Isoxazolines. Chem Asian J 2024; 19:e202300904. [PMID: 38018300 DOI: 10.1002/asia.202300904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023]
Abstract
An in situ generated photoactive copper(I)-complex-catalyzed aziridination reaction of cyclic N-sulfonyl imines with α-aryl-substituted vinyl azides irradiated by blue-LEDs light is reported for the first time. This novel SET process represents a mild, sustainable, and pragmatic method for accessing synthetically resourceful sulfamidate-fused aziridines in acceptable chemical yields with excellent diastereoselectivities. Delightedly, pharmacologically attractive benzo[f][1,2,3]oxathiazepine dioxides and fused isoxazoline frameworks were achieved through our newly developed metal-free based ring-expansion techniques, highlighting the synthetic value of accessed aziridines. Finally, the possible mechanism for [2+1] aza-cyclization was presented based on the conduction of a series of control experiments.
Collapse
Affiliation(s)
- S Banuprakash Goud
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, 453552, Madhya Pradesh, India
| | - Raju Lal Dhakar
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, 453552, Madhya Pradesh, India
| | - Sampak Samanta
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, 453552, Madhya Pradesh, India
| |
Collapse
|
4
|
Noor R, Zahoor AF, Mansha A, Khan SG, Haq AU, Ahmad S, Al-Hussain SA, Irfan A, Zaki MEA. Synthetic Potential of Regio- and Stereoselective Ring Expansion Reactions of Six-Membered Carbo- and Heterocyclic Ring Systems: A Review. Int J Mol Sci 2023; 24:ijms24076692. [PMID: 37047665 PMCID: PMC10094819 DOI: 10.3390/ijms24076692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/08/2023] [Accepted: 03/11/2023] [Indexed: 04/07/2023] Open
Abstract
Ring expansion reactions fascinate synthetic chemists owing to their importance in synthesizing biologically active compounds and their efficacy in medicinal chemistry. The present review summarizes a number of synthetic methodologies, including stereoselective and regioselective pathways adopted by scientists, for framing medium- to large-size carbo- and heterocycles involving lactams, lactone, azepine and azulene derivatives via ring expansion of six-membered carbo- and heterocycles that have been reported from 2007–2022. Numerous rearrangement and cycloaddition reactions involving Tiffeneau–Demjanov rearrangement, Aza–Claisen rearrangement, Schmidt rearrangement, Beckmann rearrangement, etc., have been described in this regard.
Collapse
Affiliation(s)
- Rida Noor
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan
| | - Samreen Gul Khan
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan
| | - Atta Ul Haq
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology Lahore, Faisalabad Campus, Faisalabad 38000, Pakistan
| | - Sami A. Al-Hussain
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Ali Irfan
- Department of Chemistry, Government College, University Faisalabad, Faisalabad 38000, Pakistan
| | - Magdi E. A. Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| |
Collapse
|
5
|
Rani P, Prakash M, Samanta S. Organobase-catalyzed Mannich reaction of cyclic N-sulfonyl imines and 1,2-diketones: a sustainable approach to 4-(3-arylquinoxalin-2-ylmethyl)sufamidates. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
|
6
|
Yang Z, Zalessky I, Epton RG, Whitwood AC, Lynam JM, Unsworth WP. Ring Expansion Strategies for the Synthesis of Medium Sized Ring and Macrocyclic Sulfonamides. Angew Chem Int Ed Engl 2023; 62:e202217178. [PMID: 36716014 DOI: 10.1002/anie.202217178] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/16/2023] [Accepted: 01/30/2023] [Indexed: 01/31/2023]
Abstract
Two new ring expansion strategies are reported for the synthesis of medium sized ring and macrocyclic sulfonamides. Both methods can be performed without using classical protecting groups, with the key ring expansion step initiated by nitro reduction and amine conjugate addition respectively. Each method can be used to make diversely functionalised cyclic sulfonamides in good to excellent yields, in a range of ring sizes. The ring size dependency of the synthetic reactions is in good agreement with the outcomes modelled by Density Functional Theory calculations.
Collapse
Affiliation(s)
- Zhongzhen Yang
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Illya Zalessky
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Ryan G Epton
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | | | - Jason M Lynam
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | | |
Collapse
|
7
|
Ma ZC, Wei LW, Huang Y. Stereodivergent Access to [6.7]-Fused N-Heterocycles Bearing 1,3-Nonadjacent Stereogenic Centers by Pd-Catalyzed [4 + 2] Annulations. Org Lett 2023; 25:1661-1666. [PMID: 36862582 DOI: 10.1021/acs.orglett.3c00269] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
We describe a highly efficient stereodivergent [4 + 2] annulation reaction of vinyl benzoxazinaones and seven-membered cyclic N-sulfonyl aldimines for the synthesis of a wide array of N-heterocycles with 1,3-nonadjacent stereogenic centers via palladium catalysis. The polarity of solvents was found to play a key role in the switch of diastereoselectivity. Furthermore, good enantioselectivities of these reactions were achieved by the employment of commercially available Wingphos as the chiral ligand.
Collapse
Affiliation(s)
- Zhan-Cai Ma
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong Univeristy, Xi'an 710061, China
| | - Lin-Wen Wei
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong Univeristy, Xi'an 710061, China
| | - Yuan Huang
- Department of Medicinal Chemistry, School of Pharmacy, Xi'an Jiaotong Univeristy, Xi'an 710061, China
| |
Collapse
|
8
|
Prakash M, Halder S, Guin S, Samanta S. Swapping Copper-Catalytic Process: Selective Access to Pyrazoles and Conjugated Ketimines from Oxime Acetates and Cyclic Sulfamidate Imines. Chem Asian J 2023; 18:e202201114. [PMID: 36583485 DOI: 10.1002/asia.202201114] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/16/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
A powerful CuCl-catalyzed sequential one-pot reaction of aryl methyl ketoxime acetates with cyclic N-sulfonyl imines followed by elimination in the presence of base is reported. This hydrazine-free method conveniently makes C-C and N-N bonds via a radical cleavage of the N-O bond, delivering a special class of C3-hydroxyarylated pyrazoles in good yields. Surprisingly, while employing CuI as a catalyst instead of CuCl, the reaction proceeds through a non-radical pathway which embodies a new tactic for the high-yielding access to value-added conjugated N-unsubstituted ketimines. Moreover, additive-free approach to sulfamidate-fused-pyrazoles was achieved by successfully catalyzing addition and oxidative N-N bond-making reactions by CuI and CuCl, respectively. Significantly, our novel technique could convert the prepared ketimines into the pharmacologically recognized 6H-benzo[c]chromene frameworks.
Collapse
Affiliation(s)
- Meher Prakash
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Sajal Halder
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Soumitra Guin
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Sampak Samanta
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| |
Collapse
|
9
|
Kilbile JT, Tamboli Y, Gadekar SS, Islam I, Supuran CT, Sapkal SB. An insight into the biological activity and structure-based drug design attributes of sulfonylpiperazine derivatives. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
10
|
Jiao L, Teng D, Wang Z, Cao G. Silver Catalyzed Site-Selective C(sp3)−H Bond Amination of Secondary over Primary C(sp3)−H Bonds. Molecules 2022; 27:molecules27196174. [PMID: 36234711 PMCID: PMC9571442 DOI: 10.3390/molecules27196174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Sulfamates are widespread in numerous pharmacologically active molecules. In this paper, Silver/Bathophenanthroline catalyzed the intramolecular selective amination of primary C(sp3)−H bonds and secondary C(sp3)−H bonds of sulfamate esters, to produce cyclic sulfamates in good yields and with a high site-selectivity. DFT calculations revealed that the interaction between sulfamates and L10 makes the molecule more firmly attached to the catalyst, benefiting the catalysis reaction. The in vitro anticancer activity of the final products was evaluated in MCF-7 breast cancer cells.
Collapse
|
11
|
Kotwal N, Tamanna, Chauhan P. Catalytic asymmetric synthesis of medium-sized bridged biaryls. Chem Commun (Camb) 2022; 58:11031-11044. [PMID: 36124624 DOI: 10.1039/d2cc04000j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the persistent presence of medium-sized (seven- to nine-membered) scaffolds in natural products and biologically active molecules, their asymmetric syntheses have always been considered a formidable task; therefore, they have remained underdeveloped when compared to the enantioselective synthesis of five- and six-membered ring scaffolds. One important class of such medium-sized ring frameworks includes seven- to nine-membered biaryl bridged carbo- and heterocycles. These medium-ring-sized biaryl frameworks possess more configurational stability than the related smaller ring structures and are common features of valuable natural products, bioactive compounds, chiral catalysts, and molecular motors. Due to these exciting properties and broad applications, over the last few years, the catalytic enantioselective synthesis of medium-sized bridged biaryls has seen an upsurge. This highlight article describes the development of organocatalysed and transition-metal catalysed transformations for procuring seven-, eight-, and nine-membered bridged biaryls bearing a chiral axis/one or more asymmetric carbon centres.
Collapse
Affiliation(s)
- Namrata Kotwal
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221 J&K, India.
| | - Tamanna
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221 J&K, India.
| | - Pankaj Chauhan
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, NH-44, Nagrota Bypass, Jammu, 181221 J&K, India.
| |
Collapse
|
12
|
Synthesis, characterization, In-silico and In-vitro investigation of sulfonamide based esters. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
13
|
Ping Y, Li X, Pan Q, Kong W. Ni-Catalyzed Divergent Synthesis of 2-Benzazepine Derivatives via Tunable Cyclization and 1,4-Acyl Transfer Triggered by Amide N-C Bond Cleavage. Angew Chem Int Ed Engl 2022; 61:e202201574. [PMID: 35385598 DOI: 10.1002/anie.202201574] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 01/08/2023]
Abstract
Ligand-directed divergent synthesis can transform common starting materials into distinct molecular scaffolds by simple tuning different ligands. This strategy enables the rapid construction of structurally rich collection of small molecules for biological evaluation and reveals novel modes of catalytic transformation, representing one of the most sought-after challenges in synthetic chemistry. We herein report a Ni-catalyzed ligand-controlled tunable cyclization/cross-couplings for the divergent synthesis of pharmacologically important 2-benzazepine frameworks. The bidentate ligand facilitates the nucleophilic addition of the aryl halides to the amide carbonyl, followed by 1,4-acyl transfer and cross-coupling to obtain 2-benzazepin-5-ones and benzo[c]pyrano[2,3-e]azepines. The tridentate ligand promotes the selective 7-endo cyclization/cross-coupling to access to 2-benzazepin-3-ones. The protocol operates under mild reaction conditions with divergent cyclization patterns that can be easily modulated through the ligand backbone.
Collapse
Affiliation(s)
- Yuanyuan Ping
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Xiao Li
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Qi Pan
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| |
Collapse
|
14
|
Mishra DR, Panda BS, Nayak S, Panda J, Mohapatra S. Recent Advances in the Synthesis of 5‐Membered
N
‐Heterocycles via Rhodium Catalysed Cascade Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Deepak R. Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bhabani S. Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| |
Collapse
|
15
|
Ping Y, Li X, Pan Q, Kong W. Ni‐Catalyzed Divergent Synthesis of 2‐Benzazepine Derivatives via Tunable Cyclization and 1,4‐Acyl Transfer Triggered by Amide N‐C Bond Cleavage. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuanyuan Ping
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Xiao Li
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Qi Pan
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS) Wuhan University Wuhan 430072 P. R. China
| |
Collapse
|
16
|
Song Y, Wang J, Deng S, Liu G, Cheng T. Quinidine-catalyzed enantioselective domino Michael addition/cyclization process: Synthesis of chiral 1,4-dihydro-pyridine containing benzosultams. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
17
|
Zhang S, Feng Z, Jiang C, Yu X, Pan J, Du J, Jiang Z, Chen Y, Wang T. Highly Enantioselective Synthesis of Phosphorus-Containing ϵ-Benzosultams by Bifunctional Phosphonium Salt-Promoted Hydrophosphonylation. Chemistry 2021; 27:11285-11290. [PMID: 34009722 DOI: 10.1002/chem.202101038] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Indexed: 12/15/2022]
Abstract
ϵ-Benzosultam derivatives are potential drug candidates with diverse biological activities. A series of chiral ϵ-benzosultams bearing phosphorus functionalities was synthesized by catalytic asymmetric hydrophosphonylation in the presence of a bifunctional phosphonium salt catalyst. The desired hydrophosphonylation products were obtained in good yields with high enantioselectivities, and scale-up reactions and further derivations were successfully accomplished. Some control experiments were also conducted to elucidate the plausible reaction mechanism of this chemical transformation.
Collapse
Affiliation(s)
- Song Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zhenghuai Feng
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, P. R. China
| | - Xiaojun Yu
- Department of Chemistry School of Basic Medical Sciences, Southwest Medical University, 1 Xianglin Road, Luzhou, 646000, P. R. China
| | - Jianke Pan
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Juan Du
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Zhiyu Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Yuan Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| |
Collapse
|
18
|
Hu B, Chen G, Zhao J, Xue L, Jiang Y, Zhang X, Fan X. Synthesis of Succinimide Spiro-Fused Sultams from the Reaction of N-(Phenylsulfonyl)acetamides with Maleimides via C(sp 2)-H Activation. J Org Chem 2021; 86:10330-10342. [PMID: 34288686 DOI: 10.1021/acs.joc.1c01048] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Presented herein is an effective preparation of succinimide spiro-fused sultams through the coupling reaction of N-(phenylsulfonyl)acetamides with maleimides. It is deduced that this reaction should proceed through a cascade process including Rh(III)-catalyzed C(sp2)-H bond cleavage of N-(phenylsulfonyl)acetamide, maleimide double bond insertion into the C-Rh bond, β-hydride elimination, reductive elimination, and intramolecular aza-Michael addition. Notably, this cascade procedure features simultaneous annulation and spirocyclization through traceless fusion of the directing group into target product by using air as an economical oxidant to assist the regeneration of the active Rh(III) catalyst. This new method has several advantages including readily accessible starting materials with broad scope, significantly reduced synthetic steps, redox-neutral conditions, high atom-economy, and sustainability.
Collapse
Affiliation(s)
- Bing Hu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guang Chen
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Jie Zhao
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Lian Xue
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yuqin Jiang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| |
Collapse
|
19
|
Khassenova G, García Mancheño O. Lewis Base‐Brønsted Acid Co‐catalyzed Morita‐Baylis‐Hillman Reaction of Cyclic Sulfamidate Imines. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Gaukhar Khassenova
- Organic Chemistry Institute University of Münster Corrensstrasse 36 48149 Münster Germany
| | - Olga García Mancheño
- Organic Chemistry Institute University of Münster Corrensstrasse 36 48149 Münster Germany
| |
Collapse
|
20
|
Hys VY, Milokhov DS, Keda TY, Omelchenko IV, Konovalova IS, Shishkina SV, Volovenko YM. Efficient synthesis of seven-membered Aza-sultams: Heterofused amino-1,2,4-thiadiazepine dioxides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132149] [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]
|
21
|
Prakash M, Lodhi R, Samanta S. Substrate-Controlled Domino Reaction of N-Sulfonyl Ketimines with 2-Aroyl-1-chlorocyclopropanecarboxylates: Access to Cyclopenta[c]chromenes and Benzo[f]cyclopenta[d][1,2]thiazepine Dioxides. J Org Chem 2021; 86:6721-6733. [DOI: 10.1021/acs.joc.1c00459] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Meher Prakash
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| | - Rajni Lodhi
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| | - Sampak Samanta
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| |
Collapse
|
22
|
Wang KK, Li YL, Lv YJ, Shen RH, Zhao W, Chen R. 1,3-Dipolar cycloaddition reactions of azomethine ylides with seven-membered cyclic N-sulfony imines access to polycyclic sulfonamides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
23
|
Okwuchukwu PM, Bandyopadhyay D. Medicinally Privileged Sultams: Synthesis and Mechanism of Action. Mini Rev Med Chem 2020; 20:2193-2206. [PMID: 32682375 DOI: 10.2174/1389557520666200719015234] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/09/2020] [Accepted: 05/12/2020] [Indexed: 11/22/2022]
Abstract
To date, more than a thousand research articles have been published detailing various regio-, stereo-, chemo-, and enantioselective specific synthesis of the cyclic sulfonamides (sultams). Although enormous synthetic efforts were made, but bioactivities of sultams have not been widely investigated. Sultams are the sulfur analogs of lactams (cyclic amides) which demonstrate a broad range of medicinal activities and several lactam drugs are commercially available. In contrast, only a few sultam drugs are commercially available, while the presence of two oxygens on sulfur in sultam motifs can serve as a better H-bond acceptor than lactam scaffolds. One of the major objectives of this minireview is to draw appropriate attention from the medicinal/pharmaceutical chemists to conduct indepth research on sultam derivatives targeted to the development of new drugs. This article gives a brief account of the synthesis, potential bioactivity, and mechanisms of therapeutic action of four to seven-membered sultam derivatives. Based on the available literature, this is the first effort to consolidate only the medicinally privileged sultam molecules and drugs under the same umbrella. While every effort was taken to comprise all the relevant reports related to bioactive sultams, any oversight is truly unintentional.
Collapse
Affiliation(s)
- Precious M Okwuchukwu
- Department of Chemistry and the School of Earth, Environmental, and Marine Sciences (SEEMS), The University of Texas Rio Grande Valley, 1201 West University Drive, Edinburg, Texas 78539, United States
| | - Debasish Bandyopadhyay
- Department of Chemistry and the School of Earth, Environmental, and Marine Sciences (SEEMS), The University of Texas Rio Grande Valley, 1201 West University Drive, Edinburg, Texas 78539, United States
| |
Collapse
|
24
|
Boraei ATA, Ghabbour HA, Gomaa MS, El Ashry ESH, Barakat A. Synthesis and Anti-Proliferative Assessment of Triazolo-Thiadiazepine and Triazolo-Thiadiazine Scaffolds. Molecules 2019; 24:molecules24244471. [PMID: 31817609 PMCID: PMC6943432 DOI: 10.3390/molecules24244471] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/29/2019] [Accepted: 12/04/2019] [Indexed: 11/16/2022] Open
Abstract
A series of triazolo-thiadiazepines 4a–k were synthesized with excellent yields using dehydrated PTSA as a catalyst in toluene. Two triazolo-thiadiazines were obtained; 8a was formed directly by reflux in ethanol, whereas, PTSA promoted the formation of 8b. The molecular structure of the formed triazolo-thiadiazepines is identical to the imine-form 4a–k and not the enamine-tautomer 6a–k. The structures of the newly synthesized triazolo-thiadiazepines 4a–k and triazolo-thiadiazines 8a–b were elucidated using NMR (1H, and 13C), 2D NMR, HRMS, and X-ray single crystal. Furthermore, 4a was deduced using X-ray single crystal diffraction analysis. These new thiadiazepine hits represent an optimized series of previously synthesized indole-triazole derivatives for the inhibition of EGFR. The cytotoxicity activity against two cancer cell lines including human liver cancer (HEPG-2) and breast cancer (MCF-7) was promising, with IC50 between 12.9 to 44.6 µg/mL and 14.7 to 48.7 µg/mL for the tested cancer cell lines respectively, compared to doxorubicin (IC50 4.0 µg/mL). Docking studies revealed that the thiadiazepine scaffold presented a suitable anchor, allowing good interaction of the various binding groups with the enzyme binding regions and sub-pockets.
Collapse
Affiliation(s)
- Ahmed T. A. Boraei
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (A.T.A.B); (A.B.); Tel.: +966-11467-5901 (A.B.); Fax: +966-11467-5992 (A.B.)
| | - Hazem A. Ghabbour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| | - Mohamed S. Gomaa
- Pharmaceutical Chemistry Department, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam 32241, Saudi Arabia;
| | - El Sayed H. El Ashry
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria 21321, Egypt;
| | - Assem Barakat
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
- Correspondence: (A.T.A.B); (A.B.); Tel.: +966-11467-5901 (A.B.); Fax: +966-11467-5992 (A.B.)
| |
Collapse
|
25
|
Zimmermann S, Akbarzadeh M, Otte F, Strohmann C, Sankar MG, Ziegler S, Pahl A, Sievers S, Kumar K. A Scaffold-Diversity Synthesis of Biologically Intriguing Cyclic Sulfonamides. Chemistry 2019; 25:15498-15503. [PMID: 31518018 PMCID: PMC6916640 DOI: 10.1002/chem.201904175] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 12/11/2022]
Abstract
A "branching-folding" synthetic strategy that affords a range of diverse cyclic benzo-sulfonamide scaffolds is presented. Whereas different annulation reactions on common ketimine substrates build the branching phase of the scaffold synthesis, a common hydrogenative ring-expansion method, facilitated by an increase of the ring-strain during the branching phase, led to sulfonamides bearing medium-sized rings in a folding pathway. Cell painting assay was successfully employed to identify tubulin targeting sulfonamides as novel mitotic inhibitors.
Collapse
Affiliation(s)
- Stefan Zimmermann
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
- Fakultät Chemie und Chemische BiologieTechnische Universität DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Mohammad Akbarzadeh
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Felix Otte
- Fakultät Chemie und Chemische BiologieTechnische Universität DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Carsten Strohmann
- Fakultät Chemie und Chemische BiologieTechnische Universität DortmundOtto-Hahn Str. 644227DortmundGermany
| | - Muthukumar Gomathi Sankar
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Slava Ziegler
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Axel Pahl
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Sonja Sievers
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| | - Kamal Kumar
- Abteilung Chemische BiologieMax-Planck-Institut für Molekulare PhysiologieOtto-Hahn-Straße 1144227DortmundGermany
| |
Collapse
|
26
|
Shi L, Bao RLY, Zheng L, Zhao R. B(C6
F5
)3
-Catalyzed Reduction of Cyclic N
-Sulfonyl Ketimines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lei Shi
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| | - Robert Li-Yuan Bao
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| | - Limin Zheng
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| | - Rong Zhao
- School of Science; Harbin Institute of Technology; 518055 Shenzhen China
| |
Collapse
|
27
|
Zhao ZB, Shi L, Li Y, Meng FJ, Zhou YG. Facile synthesis of chiral ε-sultams via an organocatalytic aza-Friedel-Crafts reaction. Org Biomol Chem 2019; 17:6364-6368. [PMID: 31225577 DOI: 10.1039/c9ob01158g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Chiral ε-sultams, with their unique strain cyclic structure, are a type of molecule with important biological activities. A facile enantioselective aza-Friedel-Crafts reaction of seven-membered cyclic N-sulfonylimines with naphthols was developed with a cinchona alkaloid-based bifunctional organocatalyst, giving chiral ε-sultams with an enantiomeric excess of up to 92%.
Collapse
Affiliation(s)
- Zi-Biao Zhao
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China. and State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.
| | - Lei Shi
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China.
| | - Yaming Li
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China.
| | - Fan-Jie Meng
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China.
| | - Yong-Gui Zhou
- State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China. and State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China.
| |
Collapse
|
28
|
Kaur N. Synthetic routes to seven and higher membered S-heterocycles by use of metal and nonmetal catalyzed reactions. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1539493] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
| |
Collapse
|
29
|
Zhao C, Rakesh KP, Ravidar L, Fang WY, Qin HL. Pharmaceutical and medicinal significance of sulfur (S VI)-Containing motifs for drug discovery: A critical review. Eur J Med Chem 2019; 162:679-734. [PMID: 30496988 PMCID: PMC7111228 DOI: 10.1016/j.ejmech.2018.11.017] [Citation(s) in RCA: 288] [Impact Index Per Article: 57.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/17/2018] [Accepted: 11/07/2018] [Indexed: 01/04/2023]
Abstract
Sulfur (SVI) based moieties, especially, the sulfonyl or sulfonamide based analogues have showed a variety of pharmacological properties, and its derivatives propose a high degree of structural diversity that has established useful for the finding of new therapeutic agents. The developments of new less toxic, low cost and highly active sulfonamides containing analogues are hot research topics in medicinal chemistry. Currently, more than 150 FDA approved Sulfur (SVI)-based drugs are available in the market, and they are widely used to treat various types of diseases with therapeutic power. This comprehensive review highlights the recent developments of sulfonyl or sulfonamides based compounds in huge range of therapeutic applications such as antimicrobial, anti-inflammatory, antiviral, anticonvulsant, antitubercular, antidiabetic, antileishmanial, carbonic anhydrase, antimalarial, anticancer and other medicinal agents. We believe that, this review article is useful to inspire new ideas for structural design and developments of less toxic and powerful Sulfur (SVI) based drugs against the numerous death-causing diseases.
Collapse
Affiliation(s)
- Chuang Zhao
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China
| | - K P Rakesh
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China.
| | - L Ravidar
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China
| | - Wan-Yin Fang
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China
| | - Hua-Li Qin
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China.
| |
Collapse
|
30
|
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, Rajasthan, India
| |
Collapse
|
31
|
Zhao ZB, Shi L, Meng FJ, Li Y, Zhou YG. Synthesis of chiral seven-membered cyclic sulfonamides through palladium-catalyzed arylation of cyclic imines. Org Chem Front 2019. [DOI: 10.1039/c8qo01323c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An enantioselective palladium-catalyzed addition of arylboronic acids to seven-membered cyclic N-sulfonyl aldimines and ketimines has been developed, giving the chiral cyclic sulfonamides with excellent yields and up to 99% ee.
Collapse
Affiliation(s)
- Zi-Biao Zhao
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Lei Shi
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Fan-Jie Meng
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yaming Li
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| |
Collapse
|
32
|
Quan M, Wang X, Wu L, Gridnev ID, Yang G, Zhang W. Ni(II)-catalyzed asymmetric alkenylations of ketimines. Nat Commun 2018; 9:2258. [PMID: 29884893 PMCID: PMC5993804 DOI: 10.1038/s41467-018-04645-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 05/14/2018] [Indexed: 01/13/2023] Open
Abstract
Chiral allylic amines are not only present in many bioactive compounds, but can also be readily transformed to other chiral amines. Therefore, the asymmetric synthesis of chiral allylic amines is highly desired. Herein, we report two types of Ni(II)-catalyzed asymmetric alkenylation of cyclic ketimines for the preparation of chiral allylic amines. When ketimines bear alkyl or alkoxycarbonyl groups, the alkenylation gives five- and six-membered cyclic α-tertiary allylic amine products with excellent yields and enantioselectivities under mild reaction conditions. A variety of ketimines can be used and the method tolerates some variation in alkenylboronic acid scope. Furthermore, with alkenyl five-membered ketimine substrates, an alkenylation/rearrangement reaction occurs, providing seven-membered chiral sulfamide products bearing a conjugated diene skeleton with excellent yields and enantioselectivities. Mechanistic studies reveal that the ring expansion step is a stereospecific site-selective process, which can be catalyzed by acid (Lewis acid or Brønsted acid). Chiral allylic amines are often encountered in bioactive compounds and can be conveniently transformed into other chiral amines. Here, the authors report nickel-catalyzed enantioselective addition and addition/ring-expansion of alkenylboronic acids to ketimines providing a range of valuable chiral azaheterocycles.
Collapse
Affiliation(s)
- Mao Quan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaoxiao Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Liang Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Ilya D Gridnev
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki 3-6, Aoba-ku, Sendai, 9808578, Japan
| | - Guoqiang Yang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
| |
Collapse
|
33
|
Wang L, Rahman A, Lin X. Enantioselective synthesis of cyclic quaternary α-amino acid derivatives by chiral phosphoric acid catalysis. Org Biomol Chem 2018; 15:6033-6041. [PMID: 28681891 DOI: 10.1039/c7ob01149k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A highly enantioselective aza-Friedel-Crafts reaction of N-sulfonyl cyclic ketimines with indoles catalyzed by chiral phosphoric acids has been developed. This methodology provides an efficient and facile route to indole-containing chiral cyclic α-amino acid derivatives bearing a quaternary stereocenter in high yields and up to 98% enantioselectivity.
Collapse
Affiliation(s)
- Lei Wang
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
| | | | | |
Collapse
|
34
|
Callingham M, Partridge BM, Lewis W, Lam HW. Enantioselective Rhodium-Catalyzed Coupling of Arylboronic Acids, 1,3-Enynes, and Imines by Alkenyl-to-Allyl 1,4-Rhodium(I) Migration. Angew Chem Int Ed Engl 2017; 56:16352-16356. [PMID: 28980437 PMCID: PMC5765452 DOI: 10.1002/anie.201709334] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Indexed: 01/04/2023]
Abstract
A chiral rhodium complex catalyzes the highly enantioselective coupling of arylboronic acids, 1,3-enynes, and imines to give homoallylic sulfamates. The key step is the generation of allylrhodium(I) species by alkenyl-to-allyl 1,4-rhodium(I) migration.
Collapse
Affiliation(s)
- Michael Callingham
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
- The GSK Carbon Neutral Laboratories for Sustainable ChemistryUniversity of NottinghamJubilee Campus, Triumph RoadNottinghamNG7 2TUUK
| | - Benjamin M. Partridge
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
- Department of ChemistryUniversity of SheffieldSheffieldS3 7HFUK
| | - William Lewis
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Hon Wai Lam
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
- The GSK Carbon Neutral Laboratories for Sustainable ChemistryUniversity of NottinghamJubilee Campus, Triumph RoadNottinghamNG7 2TUUK
| |
Collapse
|
35
|
Callingham M, Partridge BM, Lewis W, Lam HW. Enantioselective Rhodium-Catalyzed Coupling of Arylboronic Acids, 1,3-Enynes, and Imines by Alkenyl-to-Allyl 1,4-Rhodium(I) Migration. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709334] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Michael Callingham
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
| | - Benjamin M. Partridge
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
- Department of Chemistry; University of Sheffield; Sheffield S3 7HF UK
| | - William Lewis
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- School of Chemistry; University of Nottingham; University Park Nottingham NG7 2RD UK
- The GSK Carbon Neutral Laboratories for Sustainable Chemistry; University of Nottingham; Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
| |
Collapse
|
36
|
Laha JK, Sharma S, Kirar S, Banerjee UC. Design, Sustainable Synthesis, and Programmed Reactions of Templated N-Heteroaryl-Fused Vinyl Sultams. J Org Chem 2017; 82:9350-9359. [PMID: 28825838 DOI: 10.1021/acs.joc.7b01340] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A de novo design and synthesis of N-heteroaryl-fused vinyl sultams as templates for programming chemical reactions on vinyl sultam periphery or (hetero)aryl ring is described. The key features include rational designing and sustainable synthesis of the template, customized reactions of vinyl sultams at C═C bond or involving N-S bond cleavage, and reactions on the periphery of the heteroaryl ring for late-stage diversification. The simple, easy access to the template coupled with opportunities for the synthesis of diversely functionalized heterocyles from a single template constitutes a rare study in contemporary organic synthesis.
Collapse
Affiliation(s)
- Joydev K Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research , S. A. S. Nagar, Punjab 160062, India
| | - Shubhra Sharma
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research , S. A. S. Nagar, Punjab 160062, India
| | - Seema Kirar
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research , S. A. S. Nagar, Punjab 160062, India
| | - Uttam C Banerjee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research , S. A. S. Nagar, Punjab 160062, India
| |
Collapse
|
37
|
Facile dimethyl amino group triggered cyclic sulfonamides synthesis and evaluation as alkaline phosphatase inhibitors. Bioorg Chem 2017; 71:10-18. [DOI: 10.1016/j.bioorg.2017.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 11/10/2016] [Accepted: 01/15/2017] [Indexed: 11/22/2022]
|
38
|
Leach K, Gregory KJ. Molecular insights into allosteric modulation of Class C G protein-coupled receptors. Pharmacol Res 2017; 116:105-118. [DOI: 10.1016/j.phrs.2016.12.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 11/18/2016] [Accepted: 12/07/2016] [Indexed: 12/23/2022]
|
39
|
Gong X, Li G, Wu J. Synthesis of polycyclic sultams via a palladium-catalyzed reaction of 1-bromo-2-(cyclopropylidenemethyl)benzenes with 2-alkynylbenzenesulfonamides. Org Chem Front 2017. [DOI: 10.1039/c6qo00480f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polycyclic sultams are efficiently synthesized through a palladium-catalyzed tandem reaction of 1-bromo-2-(cyclopropylidenemethyl)benzenes with 2-alkynylbenzenesulfonamides via double carbometallation.
Collapse
Affiliation(s)
- Xinxing Gong
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Guangming Li
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine
- Shanghai 200092
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
- State Key Laboratory of Organometallic Chemistry
| |
Collapse
|
40
|
Song B, Yu CB, Ji Y, Chen MW, Zhou YG. Synthesis of chiral sultams via palladium-catalyzed intramolecular asymmetric reductive amination. Chem Commun (Camb) 2017; 53:1704-1707. [DOI: 10.1039/c6cc09493g] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A palladium-catalyzed intramolecular reductive amination of ketones with weakly nucleophilic sulfonamides has been developed, providing facile access to a range of chiral sultams with up to 99% enantioselectivity.
Collapse
Affiliation(s)
- Bo Song
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Chang-Bin Yu
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yue Ji
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Mu-Wang Chen
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| |
Collapse
|
41
|
Jiang H, Lang K, Lu H, Wojtas L, Zhang XP. Intramolecular Radical Aziridination of Allylic Sulfamoyl Azides by Cobalt(II)-Based Metalloradical Catalysis: Effective Construction of Strained Heterobicyclic Structures. Angew Chem Int Ed Engl 2016; 55:11604-8. [PMID: 27511474 PMCID: PMC5014589 DOI: 10.1002/anie.201605238] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 06/25/2016] [Indexed: 01/05/2023]
Abstract
Cobalt(II)-based metalloradical catalysis (MRC) has been successfully applied for effective construction of the highly strained 2-sulfonyl-1,3-diazabicyclo[3.1.0]hexane structures in high yields through intramolecular radical aziridination of allylic sulfamoyl azides. The resulting [3.1.0] bicyclic aziridines prove to be versatile synthons for the preparation of a diverse range of 1,2- and 1,3-diamine derivatives by selective ring-opening reactions. As a demonstration of its application for target synthesis, the metalloradical intramolecular aziridination reaction has been incorporated as a key step for efficient synthesis of a potent neurokinin 1 (NK1 ) antagonist in 60 % overall yield.
Collapse
Affiliation(s)
- Huiling Jiang
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Kai Lang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts, 02467, USA
| | - Hongjian Lu
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
- The Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing, 210093, P.R. China
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - X Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts, 02467, USA.
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA.
| |
Collapse
|
42
|
Jiang H, Lang K, Lu H, Wojtas L, Zhang XP. Intramolecular Radical Aziridination of Allylic Sulfamoyl Azides by Cobalt(II)‐Based Metalloradical Catalysis: Effective Construction of Strained Heterobicyclic Structures. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605238] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Huiling Jiang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Kai Lang
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill Massachusetts 02467 USA
| | - Hongjian Lu
- Department of Chemistry University of South Florida Tampa FL 33620 USA
- The Institute of Chemistry & Biomedical Sciences Nanjing University Nanjing 210093 P.R. China
| | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - X. Peter Zhang
- Department of Chemistry, Merkert Chemistry Center Boston College Chestnut Hill Massachusetts 02467 USA
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| |
Collapse
|
43
|
Design and synthesis of calindol derivatives as potent and selective calcium sensing receptor agonists. Bioorg Med Chem 2016; 24:554-69. [DOI: 10.1016/j.bmc.2015.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/13/2015] [Accepted: 12/10/2015] [Indexed: 01/04/2023]
|
44
|
Gong X, Xia H, Wu J. A palladium-catalyzed tandem reaction of 2-alkynylbenzenesulfonamides with 2-(2-bromoarylidene)cyclobutanones. Org Chem Front 2016. [DOI: 10.1039/c6qo00091f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The core of benzo[f][1,2]thiazonin-5(4H)-one 3,3-dioxide is efficiently assembled through a palladium-catalyzed tandem reaction of 2-alkynylbenzenesulfonamides with 2-(2-bromobenzylidene)cyclobutanones via double carbometallation. A range of polycycles with a nine-membered sultam ring are generated in moderate to good yields.
Collapse
Affiliation(s)
- Xinxing Gong
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Hongguang Xia
- Department of Biochemistry and Molecular Biology
- Zhejiang University School of Medicine
- Hangzhou 310058
- China
| | - Jie Wu
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
- State Key Laboratory of Organometallic Chemistry
| |
Collapse
|
45
|
Xia AJ, Kang TR, He L, Chen LM, Li WT, Yang JL, Liu QZ. Metal-Free Ring-Expansion Reaction of Six-membered Sulfonylimines with Diazomethanes: An Approach toward Seven-Membered Enesulfonamides. Angew Chem Int Ed Engl 2015; 55:1441-4. [PMID: 26663740 DOI: 10.1002/anie.201508804] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 11/13/2015] [Indexed: 02/05/2023]
Affiliation(s)
- An-Jie Xia
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| | - Tai-Ran Kang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Cancer Center, West China Hospital; Sichuan University; Chengdu P.R. China
| | - Long He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| | - Lian-Mei Chen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| | - Wen-Ting Li
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Cancer Center, West China Hospital; Sichuan University; Chengdu P.R. China
| | - Jin-Liang Yang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Cancer Center, West China Hospital; Sichuan University; Chengdu P.R. China
| | - Quan-Zhong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| |
Collapse
|
46
|
Xia AJ, Kang TR, He L, Chen LM, Li WT, Yang JL, Liu QZ. Metal-Free Ring-Expansion Reaction of Six-membered Sulfonylimines with Diazomethanes: An Approach toward Seven-Membered Enesulfonamides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508804] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- An-Jie Xia
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| | - Tai-Ran Kang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Cancer Center, West China Hospital; Sichuan University; Chengdu P.R. China
| | - Long He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| | - Lian-Mei Chen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| | - Wen-Ting Li
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Cancer Center, West China Hospital; Sichuan University; Chengdu P.R. China
| | - Jin-Liang Yang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, Cancer Center, West China Hospital; Sichuan University; Chengdu P.R. China
| | - Quan-Zhong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province/College of Chemistry & Chemical Engineering, Collaborative Innovation Center of Tissue Repair Material of Sichuan Province; China West Normal University; Nanchong 637009 China
| |
Collapse
|
47
|
Room Temperature Activation of Aryloxysulfonyl Azides by [Co(II)(TPP)] for Selective Radical Aziridination of Alkenes via Metalloradical Catalysis. Tetrahedron Lett 2015; 56:3431-3434. [PMID: 26139944 DOI: 10.1016/j.tetlet.2015.01.186] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aryloxysulfonyl azides can be effectively activated by commercially available cobalt(II) complex of meso-tetraphenylporphyrin ([Co(TPP)]) at room temperature under neutral and nonoxidative conditions for selective radical aziridination of alkenes via metalloradical catalysis. The [Co(TPP)]-catalyzed radical aziridination system is suitable for different combinations of olefin substrates and aryloxysulfonyl azides, producing various N-aryloxysulfonyl aziridine derivatives in good to excellent yields. In addition to generating the environmentally benign N2 as the only byproduct, this Co(II)-based metalloradical aziridination process features mild reaction conditions and operational simplicity.
Collapse
|
48
|
Ring Expansions of Activated Aziridines and Azetidines. TOPICS IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1007/7081_2015_159] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
49
|
Abstract
Benzothiazepines being an integral part of the major cardiovascular drugs in market ascertain their biological importance. This review presents a comprehensive vision of the various synthetic tactics adopted till now to afford these frameworks.
Collapse
Affiliation(s)
- Debasmita Saha
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Garima Jain
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| |
Collapse
|
50
|
Laha JK, Dayal N, Jain R, Patel K. Palladium-Catalyzed Regiocontrolled Domino Synthesis of N-Sulfonyl Dihydrophenanthridines and Dihydrodibenzo[c,e]azepines: Control over the Formation of Biaryl Sultams in the Intramolecular Direct Arylation. J Org Chem 2014; 79:10899-907. [DOI: 10.1021/jo501910q] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Neetu Dayal
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Roli Jain
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Ketul Patel
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| |
Collapse
|