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Reimann CE, Ngamnithiporn A, Hayashida K, Saito D, Korch KM, Stoltz BM. The Enantioselective Synthesis of Eburnamonine, Eucophylline, and 16′‐
epi
‐Leucophyllidine. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106184] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christopher E. Reimann
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
| | - Aurapat Ngamnithiporn
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
- Laboratory of Medicinal Chemistry Chulabhorn Research Institute 54 Kamphaeng Phet 6 Road Bangkok 10210 Thailand
| | - Kohei Hayashida
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
- Discovery Research Laboratories Nippon Chemiphar Co., Ltd. 1–22 Hikokawado Misato Saitama 341-005 Japan
| | - Daisuke Saito
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
- Discovery Research Laboratories Nippon Chemiphar Co., Ltd. 1–22 Hikokawado Misato Saitama 341-005 Japan
| | - Katerina M. Korch
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering Division of Chemistry and Chemical Engineering 1200 E. California Blvd, MC 101-20 Pasadena CA 91125 USA
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Reimann CE, Ngamnithiporn A, Hayashida K, Saito D, Korch KM, Stoltz BM. The Enantioselective Synthesis of Eburnamonine, Eucophylline, and 16'-epi-Leucophyllidine. Angew Chem Int Ed Engl 2021; 60:17957-17962. [PMID: 34036708 PMCID: PMC8338904 DOI: 10.1002/anie.202106184] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Indexed: 11/08/2022]
Abstract
A synthetic approach to the heterodimeric bisindole alkaloid leucophyllidine is disclosed herein. An enantioenriched lactam building block, synthesized through palladium-catalyzed asymmetric allylic alkylation, served as the precursor to both hemispheres. The eburnamonine-derived fragment was synthesized through a Bischler-Napieralski/hydrogenation approach, while the eucophylline-derived fragment was synthesized by Friedländer quinoline synthesis and two sequential C-H functionalization steps. A convergent Stille coupling and phenol-directed hydrogenation united the two monomeric fragments to afford 16'-epi-leucophyllidine in 21 steps from commercial material.
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Affiliation(s)
- Christopher E. Reimann
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, 1200 E. California Blvd. MC 101-20, Pasadena, CA 91125 (USA)
| | - Aurapat Ngamnithiporn
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, 1200 E. California Blvd. MC 101-20, Pasadena, CA 91125 (USA)
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Bangkok, 10210, Thailand
| | - Kohei Hayashida
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, 1200 E. California Blvd. MC 101-20, Pasadena, CA 91125 (USA)
- Discovery Research Laboratories, Nippon Chemiphar Co., Ltd. 1-22 Hikokawado, Misato, Saitama 341-005, Japan
| | - Daisuke Saito
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, 1200 E. California Blvd. MC 101-20, Pasadena, CA 91125 (USA)
- Discovery Research Laboratories, Nippon Chemiphar Co., Ltd. 1-22 Hikokawado, Misato, Saitama 341-005, Japan
| | - Katerina M. Korch
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, 1200 E. California Blvd. MC 101-20, Pasadena, CA 91125 (USA)
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, 1200 E. California Blvd. MC 101-20, Pasadena, CA 91125 (USA)
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Huff CA, Cohen RD, Dykstra KD, Streckfuss E, DiRocco DA, Krska SW. Photoredox-Catalyzed Hydroxymethylation of Heteroaromatic Bases. J Org Chem 2016; 81:6980-7. [DOI: 10.1021/acs.joc.6b00811] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chelsea A. Huff
- Department
of Medicinal Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Ryan D. Cohen
- Process Research & Development, Merck Research Laboratories, P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Kevin D. Dykstra
- Department
of Medicinal Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Eric Streckfuss
- Department
of Medicinal Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Daniel A. DiRocco
- Process Research & Development, Merck Research Laboratories, P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Shane W. Krska
- Department
of Medicinal Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
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Spingler B, Schnidrig S, Todorova T, Wild F. Some thoughts about the single crystal growth of small molecules. CrystEngComm 2012. [DOI: 10.1039/c1ce05624g] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Regioselective lithium–halogen exchange and palladium-catalyzed cross-coupling reactions of 2,4-dihaloquinolines. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.07.137] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chiba S, Kitamura M, Saku O, Narasaka K. Synthesis of 1-Azaazulenes from Cycloheptatrienylmethyl KetoneO-Pentafluorobenzoyloximes by Palladium-Catalyzed Cyclization and Oxidation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2004. [DOI: 10.1246/bcsj.77.785] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ono I, Ikegami T, Inayoshi T. Studies on Photochemical Reactivities of 2-(Alkylcarbamoyl)quinolines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2000. [DOI: 10.1246/bcsj.73.575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ono I, Fujiki Y, Fujinami N, Hoshi T. A Novel Photo-Induced Substitution of Alkyl 2-Cyano-3-quinolinecarboxylates. CHEM LETT 1989. [DOI: 10.1246/cl.1989.371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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