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Abstract
Verruculogens are rare fumitremorgin alkaloids that contain a highly unusual eight-membered endoperoxide. In this paper, we report a concise chemoenzymatic synthesis of 13-oxoverruculogen using enzymatic C-H peroxidation and rhodium-catalyzed C-C bond activation reactions to install the eight-membered endoperoxide and the pentacyclic core of the natural product, respectively. Our strategy involves the use of 13-epi-fumitremorgin B as a substrate analog for endoperoxidation by verruculogen synthase, FtmOx1. The resulting product, 13-epi-verruculogen, is the first unnatural endoperoxide generated by FtmOx1 and is used in the first synthesis of 13-oxoverruculogen. This strategy enables a 10-step synthesis of this natural product from commercially available starting materials and illustrates a hybrid approach utilizing biocatalytic and transition-metal-catalyzed reactions to access challenging alkaloid architectures. Moreover, this work demonstrates the use of native enzyme promiscuity as a viable strategy for the chemoenzymatic synthesis of natural products.
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Affiliation(s)
- Jun Yang
- Brandeis University, Edison-Lecks Laboratory, Waltham, Massachusetts 02453, United States
| | - Brandon Singh
- Brandeis University, Edison-Lecks Laboratory, Waltham, Massachusetts 02453, United States
| | - Gabriel Cohen
- Brandeis University, Edison-Lecks Laboratory, Waltham, Massachusetts 02453, United States
| | - Chi P Ting
- Brandeis University, Edison-Lecks Laboratory, Waltham, Massachusetts 02453, United States
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2
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Wang X, Luo D, Wang X, Zeng X, Wang X, Hu Y. N,N'-Disulfonylhydrazines: A novel source of sulfonyl moieties for synthesis of diaryl sulfones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3
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Rahman I, Deka B, Thakuria R, Deb ML, Baruah PK. L-Proline-catalyzed regioselective C1 arylation of tetrahydroisoquinolines through a multicomponent reaction under solvent-free conditions. Org Biomol Chem 2020; 18:6514-6518. [PMID: 32804185 DOI: 10.1039/d0ob01363c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Here we disclose the C1 arylation of tetrahydroisoquinolines (THIQ) through regioselective C(sp3)-H functionalization using a multicomponent reaction. The reaction was performed by reacting THIQ, aldehydes and aminopyrazoles or indoles under neat conditions with l-proline as a catalyst. The regioselectivity of the products was confirmed by X-ray analysis and spectroscopic data. The formation of an azomethine ylide intermediate is crucial for obtaining the regioselectivity.
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Affiliation(s)
- Iftakur Rahman
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati-781014, Assam, India.
| | - Bhaskar Deka
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati-781014, Assam, India.
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati-781014, Assam, India
| | - Mohit L Deb
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati-781014, Assam, India.
| | - Pranjal K Baruah
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati-781014, Assam, India.
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4
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Sun L, Li D, Zhou X, Zhang D, Wang J, He Z, Jiang R, Chen W. General and Catalytic Enantioselective Approach to Isopavine Alkaloids. J Org Chem 2017; 82:12899-12907. [PMID: 29083182 DOI: 10.1021/acs.joc.7b02385] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A concise, versatile, and catalytic enantioselective approach to natural and non-natural isopavine alkaloids has been developed. The synthesis takes advantage of catalytic asymmetric reaction to construct the pivotal stereogenic center in a highly enantioselective way (95-98% ee), and features use of intramolecular Pictet-Spengler reaction to build the core tetracyclic skeleton in a rapid and stereoselective fashion.
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Affiliation(s)
- Lingyu Sun
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
| | - Da Li
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
| | - Xiaowei Zhou
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
| | - Dongxu Zhang
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
| | - Jin Wang
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
| | - Zhongjing He
- Medical School, Xi'an Peihua University , 2 Baisha Road, Xi'an 710000, P.R. China
| | - Ru Jiang
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
| | - Weiping Chen
- School of Pharmacy, The Fourth Military Medical University , 169 Changle West Road, Xi'an 710032, P.R. China
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5
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Wang C, An D, Guan X, Fan Y, Liu G, Zhang G, Zhang S. Organocatalytic Enantioselective Synthesis of 6-Aryl-5,6-dihydrophenanthridines by a Modified Pictet-Spengler Reaction of Biphenyl-2-amines and Aromatic Aldehydes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chaoceng Wang
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Dong An
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Xukai Guan
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Yansen Fan
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Guofeng Liu
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Guangliang Zhang
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
| | - Suoqin Zhang
- College of Chemistry; Jilin University; 130012 Changchun P. R. China
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Raghavan S, Senapati P. Oxazolidines as Intermediates in the Asymmetric Synthesis of 3-Substituted and 1,3-Disubstituted Tetrahydroisoquinolines. J Org Chem 2016; 81:6201-10. [DOI: 10.1021/acs.joc.6b00525] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sadagopan Raghavan
- Natural
Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Puspamitra Senapati
- Natural
Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, India
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De Petrocellis L, Arroyo FJ, Orlando P, Schiano Moriello A, Vitale RM, Amodeo P, Sánchez A, Roncero C, Bianchini G, Martín MA, López-Alvarado P, Menéndez JC. Tetrahydroisoquinoline-Derived Urea and 2,5-Diketopiperazine Derivatives as Selective Antagonists of the Transient Receptor Potential Melastatin 8 (TRPM8) Channel Receptor and Antiprostate Cancer Agents. J Med Chem 2016; 59:5661-83. [PMID: 27232526 DOI: 10.1021/acs.jmedchem.5b01448] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tetrahydroisoquinoline derivatives containing embedded urea functions were identified as selective TRPM8 channel receptor antagonists. Structure-activity relationships were investigated, with the following conclusions: (a) The urea function and the tetrahydroisoquinoline system are necessary for activity. (b) Bis(1-aryl-6,7dimethoxy-1,2,3,4-tetrahydroisoquinolyl)ureas are more active than compounds containing one tetrahydroisoquinoline ring and than an open phenetylamine ureide. (c) Trans compounds are more active than their cis isomers. (d) Aryl substituents are better than alkyls at the isoquinoline C-1 position. (e) Electron-withdrawing substituents lead to higher activities. The most potent compound is the 4-F derivative, with IC50 in the 10(-8) M range and selectivities around 1000:1 for most other TRP receptors. Selected compounds were found to be active in reducing the growth of LNCaP prostate cancer cells. TRPM8 inhibition reduces proliferation in the tumor cells tested but not in nontumor prostate cells, suggesting that the activity against prostate cancer is linked to TRPM8 inhibition.
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Affiliation(s)
- Luciano De Petrocellis
- Endocannabinoid Research Group, Institute of Protein Biochemistry and Institute of Applied Sciences & Intelligent Systems, National Research Council , Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli, Naples, Italy
| | - Francisco J Arroyo
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - Pierangelo Orlando
- Endocannabinoid Research Group, Institute of Protein Biochemistry, National Research Council , Via P. Castellino 111, 80131 Naples, Italy
| | - Aniello Schiano Moriello
- Endocannabinoid Research Group, Institute of Protein Biochemistry and Institute of Applied Sciences & Intelligent Systems, National Research Council , Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli, Naples, Italy
| | - Rosa Maria Vitale
- Endocannabinoid Research Group, Institute of Protein Biochemistry and Institute of Applied Sciences & Intelligent Systems, National Research Council , Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli, Naples, Italy
| | - Pietro Amodeo
- Endocannabinoid Research Group, Institute of Protein Biochemistry and Institute of Applied Sciences & Intelligent Systems, National Research Council , Via Campi Flegrei 34, Comprensorio Olivetti, 80078 Pozzuoli, Naples, Italy
| | - Aránzazu Sánchez
- Departamento de Bioquímica y Biología Molecular II, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - Cesáreo Roncero
- Departamento de Bioquímica y Biología Molecular II, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - Giulia Bianchini
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - M Antonia Martín
- S.D. Química Analítica, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - Pilar López-Alvarado
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
| | - J Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense , 28040 Madrid, Spain
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Shao G, He Y, Xu Y, Chen J, Yu H, Cao R. Three-Component C1 Alkynylation of Tetrahydroisoquinolines Catalyzed by Silver Acetate. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500526] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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