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Li X, Xie L, Huang S, Guo X, Yang J, Zhao L, Yang D, Zhang G, He CY. Late-Stage Rapid [ 18F]Trifluoromethyl Radiolabeling of Terminal Alkenes at Room Temperature. Org Lett 2024; 26:10865-10869. [PMID: 39652244 DOI: 10.1021/acs.orglett.4c04022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2024]
Abstract
We report an efficient, metal-free method for late-stage rapid [18F]trifluoromethyl radiolabeling of terminal alkenes at room temperature. Utilizing 3,3-difluoroallyl sulfonium salts as precursors, the process achieves high radiochemical yields (up to 94 ± 2%) in just 30 s, with excellent functional group tolerance. This method offers a simplified and efficient pathway to produce [18F]trifluoromethylated terminal alkene compounds, enabling their application in PET imaging and expanding the chemical space for drug discovery.
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Affiliation(s)
- Xuefei Li
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
- AlphaGen Therapeutics, Shanghai 201203, China
| | - Lang Xie
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
| | - Shun Huang
- Department of Nuclear Medicine, The Tenth Affiliated Hospital, Southern Medical University (Dongguan People's Hospital), Dongguan 523059, China
| | - Xin Guo
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
| | - Jian Yang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
| | - Liang Zhao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
| | - Dezhi Yang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
| | - Guojin Zhang
- PET Center, Department of Nuclear Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Chun-Yang He
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563003, China
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‐Glucose‐Mediated Metal‐Free Oxidative Trifluoromethylation of Indoles with Langlois’ Reagent on the C2 Position. ChemistrySelect 2023. [DOI: 10.1002/slct.202203939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Sterligov G, Ageshina AA, Rzhevskiy SA, Shurupova OV, Topchiy MA, Minaeva LI, Asachenko AF. One-Pot Modified Madelung Synthesis of 3-Tosyl- and 3-Cyano-1,2-disubstituted Indoles. ACS OMEGA 2022; 7:38505-38511. [PMID: 36340104 PMCID: PMC9631411 DOI: 10.1021/acsomega.2c03754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
A One-pot, two-step procedure for the synthesis of 1,2-disubstituted-3-tosyl and 1,2-disubstituted-3-cyanoindoles from the corresponding N-(o-tolyl)benzamides is reported. The developed procedure is operationally simple, does not utilize any transition metals, and provides variably substituted indoles in good yields from readily available starting materials.
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