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Aksenov NA, Arutiunov NA, Kurenkov IA, Malyuga VV, Aksenov DA, Momotova DS, Zatsepilina AM, Chukanova EA, Leontiev AV, Aksenov AV. A Two-Step Synthesis of Unprotected 3-Aminoindoles via Post Functionalization with Nitrostyrene. Molecules 2023; 28:molecules28093657. [PMID: 37175067 PMCID: PMC10180116 DOI: 10.3390/molecules28093657] [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: 03/30/2023] [Revised: 04/19/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
A novel, low-cost method for the preparation of not easily accessible free 3-aminoindoles has been developed. This approach is based on a well-established reaction between indoles and nitrostyrene in the presence of phosphorous acid, which results in the formation of 4'-phenyl-4'H-spiro[indole-3,5'-isoxazoles]. The latter could be transformed to corresponding aminated indoles by reaction with hydrazine hydrate in good or excellent yields upon microwave-assisted heating.
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Affiliation(s)
- Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Nikolai A Arutiunov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Igor A Kurenkov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Vladimir V Malyuga
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Dmitrii A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Daria S Momotova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Anna M Zatsepilina
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Elizaveta A Chukanova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Alexander V Leontiev
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
| | - Alexander V Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355009 Stavropol, Russia
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Aksenov AV, Kirilov NK, Arutiunov NA, Aksenov DA, Kuzminov IK, Aksenov NA, Turner DN, Rogelj S, Kornienko A, Rubin M. Reductive Cleavage of 4' H-Spiro[indole-3,5'-isoxazoles] En Route to 2-(1 H-Indol-3-yl)acetamides with Anticancer Activities. J Org Chem 2022; 87:13955-13964. [PMID: 36260110 DOI: 10.1021/acs.joc.2c01627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Unusual cascade transformation involving ring opening and 1,2-alkyl shift was observed upon the reduction of 4'H-spiro[indole-3,5'-isoxazoles] or 2-(3-oxoindolin-2-yl)acetonitriles with sodium borohydride. This reaction allowed for expeditious and highly efficient preparation of 2-(1H-Indol-3-yl)acetamides with antiproliferative properties.
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Affiliation(s)
- Alexander V Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Nikita K Kirilov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Nikolai A Arutiunov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Dmitrii A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Iliya K Kuzminov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Danielle N Turner
- Departments of Biology, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, United States
| | - Snezna Rogelj
- Departments of Biology, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, United States
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, Texas 78666, United States
| | - Michael Rubin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation.,Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
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Aksenov AV, Arutiunov NA, Aksenov DA, Samovolov AV, Kurenkov IA, Aksenov NA, Aleksandrova EA, Momotova DS, Rubin M. A Convenient Way to Quinoxaline Derivatives through the Reaction of 2-(3-Oxoindolin-2-yl)-2-phenylacetonitriles with Benzene-1,2-diamines. Int J Mol Sci 2022; 23:ijms231911120. [PMID: 36232422 PMCID: PMC9570350 DOI: 10.3390/ijms231911120] [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: 08/23/2022] [Revised: 09/10/2022] [Accepted: 09/16/2022] [Indexed: 11/23/2022] Open
Abstract
Microwave-assisted reaction between 2-(3-oxoindolin-2-yl)-2-phenylacetonitriles andbenzene-1,2-diamines leads to the high-yielding formation of the corresponding quinoxalines as sole, easily isolaable products. The featured transformation involves unusual extrusion of phenylacetonitrile molecule and could be performed in a short sequence starting from commonly available indoles and nitroolefins.
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Affiliation(s)
- Alexander V. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
- Correspondence: (A.V.A.); (M.R.)
| | - Nikolai A. Arutiunov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Dmitrii A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Artem V. Samovolov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Igor A. Kurenkov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Nicolai A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Elena A. Aleksandrova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Daria S. Momotova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
| | - Michael Rubin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS 66045, USA
- Correspondence: (A.V.A.); (M.R.)
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