1
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Zhang L, Song Z. One-Pot Synthesis of Polycyclic Sultams Enabled by Gold-Catalyzed Hydroamination of o-Alkynylbenzenesulfonamides and Subsequent Iodine(III)-Mediated Counteranion-Assisted Intramolecular Annulation. Org Lett 2024; 26:2192-2196. [PMID: 38457444 DOI: 10.1021/acs.orglett.4c00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Herein we present a facile and efficient one-pot synthetic protocol for the construction of polycyclic sultams. This protocol involves gold-catalyzed intramolecular hydroamination of o-alkynylbenzenesulfonamides followed by HTIB-mediated counteranion-assisted intramolecular annulation. The transformation tolerates a wide range of functional groups, resulting in the formation of highly functionalized and valuable polycyclic sultam skeletons in moderate to excellent yields. These polycyclic sultams are widely used as key building blocks in organic science.
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Affiliation(s)
- Lijun Zhang
- College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
| | - Zhiguang Song
- College of Chemistry, Jilin University, Changchun, Jilin 130012, P. R. China
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2
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Cao L, Russo D, Lapkin AA. Automated robotic platforms in design and development of formulations. AIChE J 2021. [DOI: 10.1002/aic.17248] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Liwei Cao
- Department of Chemical Engineering and Biotechnology University of Cambridge Cambridge UK
- Cambridge Centre for Advanced Research and Education in Singapore, CARES Ltd. Singapore
| | - Danilo Russo
- Department of Chemical Engineering and Biotechnology University of Cambridge Cambridge UK
| | - Alexei A. Lapkin
- Department of Chemical Engineering and Biotechnology University of Cambridge Cambridge UK
- Cambridge Centre for Advanced Research and Education in Singapore, CARES Ltd. Singapore
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3
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Feng S, Li S, Li J, Wei J. Palladium-catalyzed annulation of N-alkoxy benzsulfonamides with arynes by C–H functionalization: access to dibenzosultams. Org Chem Front 2019. [DOI: 10.1039/c8qo01311j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Palladium-catalyzed C–H/N–H functionalization of N-alkoxy benzsulfonamides with arynes provides dibenzosultams via C–C/C–N bond formation, accompanied by an unexpected N–O bond cleavage.
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Affiliation(s)
- Simin Feng
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Shan Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Jing Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Junfa Wei
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
- Key Laboratory for Macromolecular Science of Shaanxi Province
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4
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Affiliation(s)
- Sudarshan Debnath
- Department of Chemistry; Syamsundar College; 713424 Shyamsundar India
| | - Shovan Mondal
- Department of Chemistry; Syamsundar College; 713424 Shyamsundar India
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5
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Slimi R, Kalhor-Monfared S, Plancq B, Girard C. A-21·CuI as a catalyst for Huisgen’s reaction: about iodination as a side-reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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A summary of seven- and eight-membered ring sultam syntheses via three Michael addition reactions. Mol Divers 2015; 19:447-58. [DOI: 10.1007/s11030-015-9581-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 03/12/2015] [Indexed: 11/26/2022]
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7
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Asad N, Samarakoon TB, Zang Q, Loh JK, Javed S, Hanson PR. Rapid, scalable assembly of stereochemically rich, mono- and bicyclic acyl sultams. Org Lett 2014; 16:82-5. [PMID: 24313225 PMCID: PMC4179432 DOI: 10.1021/ol403070w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A one-pot, sequential protocol is reported that involves complementary ambiphile pairing (CAP) of a vinyl sulfonamide with a variety of unprotected amino acids via aza-Michael addition and subsequent intramolecular amidation. The method generates diverse, sp(3)-rich mono- and bicyclic acyl sultams in a highly scalable manner. Modular pairing of stereochemically rich building blocks allows quick access to all possible isomers. Extension to include one-pot, sequential 3-, 4-, and 5-multicomponent protocols is also discussed.
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Affiliation(s)
- Naeem Asad
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Thiwanka B. Samarakoon
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Joanna K. Loh
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Salim Javed
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
| | - Paul. R. Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS, 66045 and The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS, 66047
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8
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Ji T, Wang Y, Wang M, Niu B, Xie P, Pittman CU, Zhou A. Parallel syntheses of eight-membered ring sultams via two cascade reactions in water. ACS COMBINATORIAL SCIENCE 2013; 15:595-600. [PMID: 24180492 DOI: 10.1021/co400116p] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
From vinyl sulfonamides as precursors to vinyl sulfonamide epoxides, two cascade reaction protocols were developed to synthesize eight-membered ring sultams in water. These protocols employ intermolecular Michael addition by NaOH or NaHS in water, followed by rapid proton transfer and intramolecular 8-endo-tet epoxide ring-opening to give medium-size sultams selectively in one-pot. Novel core structures and high synthetic efficiency make these cascade reactions highly suitable for sultam library production. Both reactions proceeded well and afforded the respective sultams in good yields under environmentally friendly conditions.
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Affiliation(s)
- Tao Ji
- Pharmacy
School, Jiangsu University, Xuefu Road 301, Zhenjiang City, Jiangsu, 212013, China
| | - Yanjie Wang
- Pharmacy
School, Jiangsu University, Xuefu Road 301, Zhenjiang City, Jiangsu, 212013, China
| | - Min Wang
- Pharmacy
School, Jiangsu University, Xuefu Road 301, Zhenjiang City, Jiangsu, 212013, China
| | - Ben Niu
- Pharmacy
School, Jiangsu University, Xuefu Road 301, Zhenjiang City, Jiangsu, 212013, China
| | - Ping Xie
- Scientific
Information Research Institute, Jiangsu University (Library), Xuefu Road 301, Zhenjiang, Jiangsu, 212013, China
| | - Charles U. Pittman
- Department
of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States, United States
| | - Aihua Zhou
- Pharmacy
School, Jiangsu University, Xuefu Road 301, Zhenjiang City, Jiangsu, 212013, China
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9
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Martinez G, Arumugam J, Jacobs HK, Gopalan AS. 3,2-Hydroxypyridinone (3,2-HOPO) vinyl sulfonamide and acrylamide linkers: Aza-Michael addition reactions and the preparation of poly-HOPO chelators. Tetrahedron Lett 2013; 54:630-634. [PMID: 23355751 PMCID: PMC3551596 DOI: 10.1016/j.tetlet.2012.11.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The HOPO vinyl sulfonamide 3 and the corresponding HOPO acrylamide 10, were easily prepared by short synthetic sequences. Investigation of the aza-Michael reactions of these linkers showed that they proceed at a higher rate in solvent systems containing water. The scope and limits of the aza-Michael reactions of 3 and 10 were examined. Reagents 3 and 10 reacted cleanly with piperazine to give the corresponding adducts which were deprotected to give the di-HOPO ligands 7 and 16. Reaction of HOPO acrylamide 10 with 1,4,7-triazacyclononane gave the tris-adduct 17 which was deprotected to give the desired tris-HOPO ligand 18. Overall, the aza-Michael reactions of 3 and 10 appear to be governed not only by the solvent but also by the nature of the amine and the solubility of the reaction intermediates.
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Affiliation(s)
- Gloria Martinez
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| | - Jayanthi Arumugam
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| | - Hollie K. Jacobs
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| | - Aravamudan S. Gopalan
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
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10
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Zang Q, Zhou A, Javed S, Maity PK, Knudtson CA, Bi D, Hastings JJ, Basha FZ, Hanson PR. Synthesis of a Library of 1,5,2-Dithiazepine 1,1-Dioxides. Part 1: A One-Pot Sulfonylation/Thia-Michael Protocol. HETEROCYCLES 2012; 86:10.3987/COM-12-S(N)121. [PMID: 24385679 PMCID: PMC3873773 DOI: 10.3987/com-12-s(n)121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A novel one-pot sulfonylation/intramolecular thia-Michael protocol is reported for the synthesis of 1,5,2-dithiazepine 1,1-dioxides. Sulfonylation between cysteine ethyl ester/cysteamine and 2-chloroethanesulfonyl chloride, followed by in situ intramolecular thia-Michael addition, was achieved and afforded the titled 1,5,2-dithiazepine-1,1-dioxide scaffolds. Diversification was demonstrated for future library synthesis.
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Affiliation(s)
- Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Aihua Zhou
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Salim Javed
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761 ; H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan
| | - Pradip K Maity
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Chris A Knudtson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Danse Bi
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Jared J Hastings
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
| | - Fatima Z Basha
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan
| | - Paul R Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, Kansas 66047-3761
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11
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Zang Q, Javed S, Hill D, Ullah F, Bi D, Porubsky P, Neuenswander B, Lushington GH, Santini C, Organ MG, Hanson PR. Automated synthesis of a library of triazolated 1,2,5-thiadiazepane 1,1-dioxides via a double aza-Michael strategy. ACS COMBINATORIAL SCIENCE 2012; 14:456-9. [PMID: 22853708 DOI: 10.1021/co300049u] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The construction of a 96-member library of triazolated 1,2,5-thiadiazepane 1,1-dioxides was performed on a Chemspeed Accelerator (SLT-100) automated parallel synthesis platform, culminating in the successful preparation of 94 out of 96 possible products. The key step, a one-pot, sequential elimination, double-aza-Michael reaction, and [3 + 2] Huisgen cycloaddition pathway has been automated and utilized in the production of two sets of triazolated sultam products.
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Affiliation(s)
- Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Salim Javed
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - David Hill
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Farman Ullah
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J
1P3 Canada
| | - Danse Bi
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
| | - Patrick Porubsky
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Benjamin Neuenswander
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Gerald H. Lushington
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Conrad Santini
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Michael G. Organ
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J
1P3 Canada
| | - Paul R. Hanson
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
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12
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Niu TF, Gu L, Yi WB, Cai C. Copper-free route to triazole-modified peptidomimetic by the combination of two multicomponent reactions in one pot. ACS COMBINATORIAL SCIENCE 2012; 14:309-15. [PMID: 22486442 DOI: 10.1021/co3000117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient copper-free protocol for the synthesis of 5-methyl-1H-1,2,3-triazole-modified peptidomimetics through the combination of Ugi four-component reaction with a three-component cycloaddition, has been developed. The copper-free straightforward process is suitable for drug discovery. The chemoselective preparation of 1,4-disubstituted, triazole-modified peptidomimetics by using alkynyl substituted amines may have potential biological and synthetic application. At last, a "Lapinski type" analysis of the physical properties was performed, which is expected to help drug discovery.
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Affiliation(s)
- Teng-fei Niu
- Chemical Engineering College, Nanjing University of Science and Technology, Nanjing, 210094,
P. R. China
| | - Lin Gu
- Chemical Engineering College, Nanjing University of Science and Technology, Nanjing, 210094,
P. R. China
| | - Wen-bin Yi
- Chemical Engineering College, Nanjing University of Science and Technology, Nanjing, 210094,
P. R. China
| | - Chun Cai
- Chemical Engineering College, Nanjing University of Science and Technology, Nanjing, 210094,
P. R. China
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13
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Faisal S, Ullah F, Maity PK, Rolfe A, Samarakoon TB, Porubsky P, Neuenswander B, Lushington GH, Basha FZ, Organ MG, Hanson PR. Facile (triazolyl)methylation of MACOS-derived benzofused sultams utilizing ROMP-derived OTP reagents. ACS COMBINATORIAL SCIENCE 2012; 14:268-72. [PMID: 22384820 DOI: 10.1021/co2001839] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A combination of MACOS scale-out and ROMP-derived oligomeric triazole phosphates (OTP(n)) have been successfully utilized for the preparation of a 106-member library of triazole containing benzothiaoxazepine-1,1-dioxides. This report demonstrates the utilization of a suite of soluble OTP(n) reagents for facile (triazolyl)methylation of 10 MACOS-derived sultam scaffolds in purification-free process for parallel synthesis of small molecule collections for HTS.
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Affiliation(s)
- Saqib Faisal
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- H. E. J. Research
Institute
of Chemistry, International Center for Chemical and Biological Science, University of Karachi, Karachi, Pakistan
| | - Farman Ullah
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J
1P3, Canada
| | - Pradip K. Maity
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
| | - Alan Rolfe
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
| | - Thiwanka B. Samarakoon
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
| | - Patrick Porubsky
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Benjamin Neuenswander
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Gerald H. Lushington
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
| | - Fatima Z. Basha
- H. E. J. Research
Institute
of Chemistry, International Center for Chemical and Biological Science, University of Karachi, Karachi, Pakistan
| | - Michael G. Organ
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J
1P3, Canada
| | - Paul R. Hanson
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural
Biology Center, Lawrence, Kansas 66047, United States
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14
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Zang Q, Javed S, Porubsky P, Ullah F, Neuenswander B, Lushington GH, Basha FZ, Organ MG, Hanson PR. Synthesis of a unique isoindoline/tetrahydroisoquinoline-based tricyclic sultam library utilizing a Heck-aza-Michael strategy. ACS COMBINATORIAL SCIENCE 2012; 14:211-7. [PMID: 22311745 DOI: 10.1021/co200181x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The synthesis of a unique isoindoline- and tetrahydroisoquinoline (THIQ)-containing tricyclic sultam library, utilizing a Heck-aza-Michael (HaM) strategy is reported. Both isoindoline and THIQ rings are installed through a Heck reaction on a vinylsulfonamide, followed by one-pot deprotection and intramolecular aza-Michael reaction. Subsequent cyclization with either paraformaldehyde condensation or 1,1'-carbonyldiimidazole coupling generates a variety of tricyclic sultams. Overall, a 160-member library of these sultams, together with their isoindolines/THIQ and secondary sulfonamides precursors, were constructed using this strategy.
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Affiliation(s)
- Qin Zang
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
| | - Salim Javed
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- H. E. J. Research Institute
of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan
| | - Patrick Porubsky
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence,
Kansas 66047-3761, United States
| | - Farman Ullah
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J
1P3 Canada
| | - Benjamin Neuenswander
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence,
Kansas 66047-3761, United States
| | - Gerald H. Lushington
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence,
Kansas 66047-3761, United States
| | - Fatima Z. Basha
- H. E. J. Research Institute
of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan
| | - Michael G. Organ
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J
1P3 Canada
| | - Paul R. Hanson
- Department
of Chemistry, University of Kansas, 1251
Wescoe Hall Drive, Lawrence,
Kansas 66045-7582, United States
- The University of Kansas Center for Chemical Methodologies and Library Development (KU-CMLD), 2034 Becker Drive, Del Shankel Structural Biology Center, Lawrence,
Kansas 66047-3761, United States
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15
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16
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Zang Q, Javed S, Ullah F, Zhou A, Knudtson CA, Bi D, Basha FZ, Organ MG, Hanson PR. Application of a Double Aza-Michael Reaction in a 'Click, Click, Cy-Click' Strategy: From Bench to Flow. SYNTHESIS-STUTTGART 2011; 2011:2743-2750. [PMID: 21927510 DOI: 10.1055/s-0030-1260112] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The development of a 'click, click, cy-click' process utilizing a double aza-Michael reaction to generate functionalized 1,2,5-thiadiazepane 1,1-dioxides is reported. Optimization in flow, followed by scale out of the inter-/intramolecular double aza-Michael addition has also been realized using a microwave-assisted, continuous flow organic synthesis platform (MACOS). In addition, a facile one-pot, sequential strategy employing in situ Huisgen cycloaddition post-double aza-Michael has been accomplished, and is applicable to library synthesis.
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Affiliation(s)
- Qin Zang
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, KS 66045-7582 and the Center for Chemical Methodologies and Library Development at the University of Kansas (KU-CMLD), 2034 Becker Drive, Delbert M. Shankel Structural Biology Center, Lawrence, KS 66047-3761, USA
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