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Vroemans R, Bamba F, Winters J, Thomas J, Jacobs J, Van Meervelt L, John J, Dehaen W. Sequential Ugi reaction/base-induced ring closing/IAAC protocol toward triazolobenzodiazepine-fused diketopiperazines and hydantoins. Beilstein J Org Chem 2018; 14:626-633. [PMID: 29623124 PMCID: PMC5870159 DOI: 10.3762/bjoc.14.49] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/22/2018] [Indexed: 01/16/2023] Open
Abstract
A practical three-step protocol for the assembly of triazolobenzodiazepine-fused diketopiperazines and hydantoins has been developed. The synthesis of these tetracyclic ring systems was initiated by an Ugi reaction, which brought together all necessary functionalities for further transformations. The Ugi adducts were then subjected to a base-induced ring closing and an intramolecular azide–alkyne cycloaddition reaction in succession to obtain highly fused benzodiazepine frameworks.
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Affiliation(s)
- Robby Vroemans
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Fante Bamba
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.,Laboratoire de Chimie Organique Structurale, UFR Sciences des Structures de la Matiere et de Technologie, Universite Felix Houphouet-Boigny, Ivory Coast
| | - Jonas Winters
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Joice Thomas
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Jeroen Jacobs
- Biochemistry, Molecular and Structural Biology, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, box 2404, 3001 Leuven, Belgium
| | - Luc Van Meervelt
- Biochemistry, Molecular and Structural Biology, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, box 2404, 3001 Leuven, Belgium
| | - Jubi John
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.,Organic Chemistry Section, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram-19, India
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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Mohan TJ, Bahulayan D. Design, synthesis and fluorescence property evaluation of blue emitting triazole-linked chromene peptidomimetics. Mol Divers 2017; 21:585-596. [DOI: 10.1007/s11030-017-9744-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 04/16/2017] [Indexed: 11/25/2022]
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“MCR-Click” synthesis of coumarin-tagged macrocycles with large Stokes shift values and cytotoxicity against human breast cancer cell line MCF-7. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.04.052] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Thasnim P, Bahulayan D. Click-on fluorescent triazolyl coumarin peptidomimetics as inhibitors of human breast cancer cell line MCF-7. NEW J CHEM 2017. [DOI: 10.1039/c7nj02712e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A fluorogenic click reaction which enables the formation of fluorescent and bioactive triazolylcoumarinsviaa photoinduced electron transfer process is described.
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Affiliation(s)
- P. Thasnim
- Department of Chemistry
- University of Calicut
- Malappuram 673635
- India
| | - D. Bahulayan
- Department of Chemistry
- University of Calicut
- Malappuram 673635
- India
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