Journal
ACS OMEGA
Volume 7, Issue 17, Pages 14712-14722Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c07363
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2018M3A9C8021792, 2019R1A4A2001451, 2020R1A2C3005357, 2020R1I1A1A01052800]
- National Research Foundation of Korea [2018M3A9C8021792, 2020R1I1A1A01052800] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The rhodium(III)-catalyzed 1,4-addition reaction of maleimides with N-aryl indazol-3-ols, disclosed in this study, provides succinimide-bearing indazol-3-ol scaffolds with complete regioselectivity and good functional group tolerance. The versatility of this protocol is demonstrated by the use of drug-molecule-linked and fluorescence probe-linked maleimides.
The structural modification of N-aryl indazolols as tautomers of N-aryl indazolones has been established as a hot topic in pharmaceutics and medicinal chemistry. We herein disclose the rhodium(III)-catalyzed 1,4-addition reaction of maleimides with Naryl indazol-3-ols, which provides the succinimide-bearing indazol-3ol scaffolds with complete regioselectivity and a good functional group tolerance. Notably, the versatility of this protocol is demonstrated by the use of drug-molecule-linked and fluorescenceprobe-linked maleimides.
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