1
|
Le TM, Njangiru IK, Vincze A, Zupkó I, Balogh GT, Szakonyi Z. Synthesis and medicinal chemical characterisation of antiproliferative O, N-functionalised isopulegol derivatives. RSC Adv 2024; 14:18508-18518. [PMID: 38867736 PMCID: PMC11168086 DOI: 10.1039/d4ra03467h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 06/02/2024] [Indexed: 06/14/2024] Open
Abstract
Benzylation of isopulegol furnished O-benzyl-protected isopulegol, which was transformed into aminodiols via epoxidation followed by ring opening of the corresponding epoxides and subsequent hydrogenolysis. On the other hand, (-)-isopulegol was oxidised to a diol, which was then converted into dibenzyl-protected diol derivatives. The products were then transformed into aminotriols by using a similar method. The antiproliferative activity of aminodiol and aminotriol derivatives was examined. In addition, structure-activity relationships were also explored from the aspects of substituent effects and stereochemistry on the aminodiol and aminotriol systems. The drug-likeness of the compounds was assessed by in silico and experimental physicochemical characterisations, completed by kinetic aqueous solubility and in vitro intestinal-specific parallel artificial membrane permeability assay (PAMPA-GI) measurements.
Collapse
Affiliation(s)
- Tam Minh Le
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 H-6720 Szeged Hungary +36 62 545705 +36 62 546809
- HUN-REN-SZTE Stereochemistry, Research Group, University of Szeged Eötvös u. 6 H-6720 Szeged Hungary
| | - Isaac Kinyua Njangiru
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged H-6720 Eötvös utca 6 Szeged Hungary
| | - Anna Vincze
- Department of Pharmaceutical Chemistry, Semmelweis University Hőgyes Endre u. 9 H-1092 Budapest Hungary
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged H-6720 Eötvös utca 6 Szeged Hungary
| | - György T Balogh
- Department of Pharmaceutical Chemistry, Semmelweis University Hőgyes Endre u. 9 H-1092 Budapest Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 H-6720 Szeged Hungary +36 62 545705 +36 62 546809
| |
Collapse
|
2
|
Ford G, Swanson CR, Bradshaw Allen RT, Marshall JR, Mattey AP, Turner NJ, Clapés P, Flitsch SL. Three-Component Stereoselective Enzymatic Synthesis of Amino-Diols and Amino-Polyols. JACS AU 2022; 2:2251-2258. [PMID: 36311836 PMCID: PMC9597598 DOI: 10.1021/jacsau.2c00374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 06/16/2023]
Abstract
Amino-polyols represent attractive chemical building blocks but can be challenging to synthesize because of the high density of asymmetric functionalities and the need for extensive protecting-group strategies. Here we present a three-component strategy for the stereoselective enzymatic synthesis of amino-diols and amino-polyols using a diverse set of prochiral aldehydes, hydroxy ketones, and amines as starting materials. We were able to combine biocatalytic aldol reactions, using variants of d-fructose-6-phosphate aldolase (FSA), with reductive aminations catalyzed by IRED-259, identified from a metagenomic library. A two-step process, without the need for intermediate isolation, was developed to avoid cross-reactivity of the carbonyl components. Stereoselective formation of the 2R,3R,4R enantiomers of amino-polyols was observed and confirmed by X-ray crystallography.
Collapse
Affiliation(s)
- Grayson
J. Ford
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Christopher R. Swanson
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Ruth T. Bradshaw Allen
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - James R. Marshall
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Ashley P. Mattey
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Nicholas J. Turner
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| | - Pere Clapés
- Biological
Chemistry Department, Institute for Advanced
Chemistry of Catalonia, IQAC−CSIC, 08034 Barcelona, Spain
| | - Sabine L. Flitsch
- Manchester
Institute of Biotechnology (MIB) & School of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
| |
Collapse
|
3
|
Inuki S, Ohno H. Total Syntheses of Myriocin, Mycestericins and Sphingofungin E: Sphingosine Analogues Containing a β, β′-Dihydroxy α-Amino Acid Framework. CHEM LETT 2021. [DOI: 10.1246/cl.210133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| |
Collapse
|
4
|
Široký M, Gonda J, Martinková M, Jacková D, Vilková M, Bindzár V, Kuchár J, Šesták S. Synthesis and mannosidase inhibitory profile of a small library of aminocyclitols from shikimic acid-derived scaffolds. Carbohydr Res 2020; 493:108027. [DOI: 10.1016/j.carres.2020.108027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/28/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022]
|
5
|
Cativiela C, Ordóñez M, Viveros-Ceballos JL. Stereoselective synthesis of acyclic α,α-disubstituted α-amino acids derivatives from amino acids templates. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130875] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Jacková D, Brunderová M, Fábian M, Martinková M, Gonda J, Pilátová MB. Synthesis and anticancer profile of novel sphingoid base-like compounds with a quaternary stereocentre. Carbohydr Res 2019; 487:107862. [PMID: 31734523 DOI: 10.1016/j.carres.2019.107862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 11/30/2022]
Abstract
The synthesis of novel sphingoid base-like compounds with a quaternary stereocentre was achieved in a sequence featuring [3,3]-sigmatropic rearrangements and olefin cross-metathesis transformation as the key reaction steps, which were accompanied by the rational selection of suitable functional group transformations. The stereochemistry of the desired tetra-substituted carbon bearing nitrogen functionality was determined via NOESY experiments of the advanced oxazolidine-2-thiones. Cell viability experiments revealed significant antiproliferative/cytotoxic activity of the target compounds 7, ent-7 and 29 against the Jurkat cell line, with the IC50 values of 6.6 μM, 5.6 μM and 6.1 μM, respectively.
Collapse
Affiliation(s)
- Dominika Jacková
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Mária Brunderová
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Martin Fábian
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Miroslava Martinková
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic.
| | - Jozef Gonda
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - Martina Bago Pilátová
- Institute of Pharmacology, Faculty of Medicine, P.J. Šafárik University, SNP 1, 040 66, Košice, Slovak Republic
| |
Collapse
|
7
|
Miyagawa T, Inuki S, Oishi S, Ohno H. Construction of Quaternary Carbon Stereocenter of α-Tertiary Amine through Remote C-H Functionalization of Tris Derivatives: Enantioselective Total Synthesis of Myriocin. Org Lett 2019; 21:5485-5490. [PMID: 31287325 DOI: 10.1021/acs.orglett.9b01778] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We describe the development of a strategy for the construction of the quaternary carbon stereocenter of α-tertiary amines. This strategy highlights a site-selective C-H functionalization involving an alkoxy-radical-triggered 1,5-hydrogen transfer (1,5-HAT) reaction of a conformationally fixed spiro-compound derived from trishydroxymethylaminomethane (Tris). The utilization of this strategy enabled an enantioselective total synthesis of myriocin, a naturally occurring sphingosine analog that displays potent immunosuppressive activity.
Collapse
Affiliation(s)
- Takashi Miyagawa
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo-ku, Kyoto 606-8501 , Japan
| |
Collapse
|
8
|
Saavedra CJ, Hernández D, Boto A. Metal-Free, Site-Selective Peptide Modification by Conversion of “Customizable” Units into β-Substituted Dehydroamino Acids. Chemistry 2017; 24:599-607. [DOI: 10.1002/chem.201703758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| | - Dácil Hernández
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| |
Collapse
|
9
|
Noda N, Nambu H, Fujiwara T, Yakura T. Total Synthesis of Sphingofungin E and 4,5-Di-epi-sphingofungin E. Chem Pharm Bull (Tokyo) 2017; 65:687-696. [PMID: 28674344 DOI: 10.1248/cpb.c17-00322] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Total synthesis of sphingofungin E and 4,5-di-epi-sphingofungin E was achieved from an intermediate same as that of myriocin and mycestericin D via antipodal stereoselective dihydroxylations.
Collapse
Affiliation(s)
- Narumi Noda
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Hisanori Nambu
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Tomoya Fujiwara
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Takayuki Yakura
- Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| |
Collapse
|
10
|
Noda N, Nambu H, Ubukata K, Fujiwara T, Tsuge K, Yakura T. Total synthesis of myriocin and mycestericin D employing Rh(II)-catalyzed C H amination followed by stereoselective alkylation. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.12.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
11
|
Johnson TC, Marsden SP. Precious-Metal-Free Heteroarylation of Azlactones: Direct Synthesis of α-Pyridyl, α-Substituted Amino Acid Derivatives. Org Lett 2016; 18:5364-5367. [DOI: 10.1021/acs.orglett.6b02731] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Tarn C. Johnson
- School of Chemistry and Institute
of Process Research and Development, University of Leeds, Leeds, LS2 9JT, U.K
| | - Stephen P. Marsden
- School of Chemistry and Institute
of Process Research and Development, University of Leeds, Leeds, LS2 9JT, U.K
| |
Collapse
|
12
|
Johnson TC, Marsden SP. A convergent, umpoled synthesis of 2-(1-amidoalkyl)pyridines. Beilstein J Org Chem 2016; 12:1-4. [PMID: 26877802 PMCID: PMC4734400 DOI: 10.3762/bjoc.12.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 12/21/2015] [Indexed: 11/23/2022] Open
Abstract
A convenient, one-pot, two-component synthesis of 2-(1-amidoalkyl)pyridines is reported, based upon the substitution of suitably-activated pyridine N-oxides by azlactone nucleophiles, followed by decarboxylative azlactone ring-opening. The synthesis obviates the need for precious metal catalysts to achieve a formal enolate arylation reaction, and constitutes a formally ‘umpoled’ approach to this valuable class of bioactive structures.
Collapse
Affiliation(s)
- Tarn C Johnson
- Institute of Process Research and Development, School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
| | - Stephen P Marsden
- Institute of Process Research and Development, School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
| |
Collapse
|
13
|
Yang L, Khan A, Zheng R, Jin LY, Zhang YJ. Pd-Catalyzed Asymmetric Decarboxylative Cycloaddition of Vinylethylene Carbonates with Imines. Org Lett 2015; 17:6230-3. [DOI: 10.1021/acs.orglett.5b03218] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lei Yang
- School
of Chemistry and Chemical Engineering and Shanghai Key Laboratory
of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Key
Laboratory for Organism Resources of the Changbai Mountain and Functional
Molecules, Ministry of Education, and Department of Chemistry, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
| | - Ajmal Khan
- School
of Chemistry and Chemical Engineering and Shanghai Key Laboratory
of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Renfeng Zheng
- School
of Chemistry and Chemical Engineering and Shanghai Key Laboratory
of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Long Yi Jin
- Key
Laboratory for Organism Resources of the Changbai Mountain and Functional
Molecules, Ministry of Education, and Department of Chemistry, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
| | - Yong Jian Zhang
- School
of Chemistry and Chemical Engineering and Shanghai Key Laboratory
of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| |
Collapse
|
14
|
Nambu H, Noda N, Niu W, Fujiwara T, Yakura T. Stereoselective Total Synthesis of Myriocin Using Rhodium(II)-Catalyzed C−H Amination Followed by Alkylation. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500318] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hisanori Nambu
- Graduate School of Medicine and Pharmaceutical Sciences; University of Toyama, Sugitani; Toyama 930-0194 Japan
| | - Narumi Noda
- Graduate School of Medicine and Pharmaceutical Sciences; University of Toyama, Sugitani; Toyama 930-0194 Japan
| | - Wenqi Niu
- Graduate School of Medicine and Pharmaceutical Sciences; University of Toyama, Sugitani; Toyama 930-0194 Japan
| | - Tomoya Fujiwara
- Graduate School of Medicine and Pharmaceutical Sciences; University of Toyama, Sugitani; Toyama 930-0194 Japan
| | - Takayuki Yakura
- Graduate School of Medicine and Pharmaceutical Sciences; University of Toyama, Sugitani; Toyama 930-0194 Japan
| |
Collapse
|
15
|
Pereira CB, de Oliveira DM, Hughes AF, Kohlhoff M, LA Vieira M, Martins Vaz AB, Ferreira MC, Carvalho CR, Rosa LH, Rosa CA, Alves TM, Zani CL, Johann S, Cota BB. Endophytic fungal compounds active against Cryptococcus neoformans and C. gattii. J Antibiot (Tokyo) 2015; 68:436-44. [PMID: 25712396 DOI: 10.1038/ja.2015.11] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/16/2014] [Accepted: 01/19/2015] [Indexed: 12/17/2022]
Abstract
Infections with Cryptococcus are invasive mycoses associated with significant morbidity and mortality, mainly in immunosuppressed patients. Several drugs have been introduced to combat these opportunistic infections. However, resistance of this organism to antifungal drugs has increased, causing difficulties in the treatment. The goal of this work was to evaluate the antifungal activity of ethanol extracts from endophytic fungi isolated from plants collected from different Brazilian ecosystems and to perform the fractionation of the most promising extract. Four-hundred fungal extracts were investigated by microdilution broth assays against Cryptococcus neoformans and Cryptococcus gattii at a concentration of 500 μg ml(-1). Among them, the extract of Mycosphaerella sp. UFMGCB 2032, an endophytic fungus isolated from the plant Eugenia bimarginata DC. (Myrtaceae) exhibited outstanding antifungal activity against C. neoformans and C. gattii, with MIC values of 31.2 μg ml(-1) and 7.8 μg ml(-1), respectively. The fractionation of this extract using liquid-liquid partitioning and semi-preparative HPLC afforded two eicosanoic acids with antifungal activity, compound 1, (2S,3R,4R)-(E)-2-amino-3,4-dihydroxy-2-(hydroxymethyl)-14-oxoeicos-6,12-dienoic acid with MIC values ranging from 1.3-2.50 μg ml(-1), and compound 2, known as myriocin, with MIC values of 0.5 μg ml(-1) against C. neoformans and C. gattii. These compounds are reported for the first time in the Mycosphaerella genus.
Collapse
Affiliation(s)
- Cristiane B Pereira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Djalma M de Oliveira
- Departamento de Química e Exatas, Universidade Estadual do Sudoeste da Bahia, Campus Universitário de Jequié, Jequié, Bahia, Brazil
| | - Alice Fs Hughes
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Markus Kohlhoff
- Laboratório de Química de Produtos Naturais, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| | - Mariana LA Vieira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Aline B Martins Vaz
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mariana C Ferreira
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Camila R Carvalho
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiz H Rosa
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Carlos A Rosa
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Tânia Ma Alves
- Laboratório de Química de Produtos Naturais, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| | - Carlos L Zani
- Laboratório de Química de Produtos Naturais, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| | - Susana Johann
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Betania B Cota
- Laboratório de Química de Produtos Naturais, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| |
Collapse
|
16
|
Saha N, Chatterjee B, Chattopadhyay SK. δ,ε-Unsaturated α,β-Diamino Acids as Building Blocks for the Asymmetric Synthesis of Diverse α,β-Diamino Acids. J Org Chem 2015; 80:1896-904. [PMID: 25562112 DOI: 10.1021/jo5022162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nemai Saha
- Department of Chemistry, University of Kalyani, Kalyani-741235, West Bengal, India
| | - Bhaskar Chatterjee
- Department of Chemistry, University of Kalyani, Kalyani-741235, West Bengal, India
| | | |
Collapse
|
17
|
Park SH, Jin X, Kang JC, Jung C, Kim SS, Kim SS, Lee KY, Ham WH. Chirality extension of an oxazine building block en route to total syntheses of (+)-hyacinthacine A2 and sphingofungin B. Org Biomol Chem 2015; 13:4539-50. [DOI: 10.1039/c5ob00251f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Concise total syntheses of (+)-hyacinthacine A2 and sphingofungin B were achieved by palladium(0)-catalyzed intramolecular oxazine formation and diastereoselective nucleophilic additions.
Collapse
Affiliation(s)
- Seok-Hwi Park
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Xiangdan Jin
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Jong-Cheol Kang
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Changyoung Jung
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Seong-Soo Kim
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Sung-Soo Kim
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| | - Kee-Young Lee
- Yonsung Fine Chemicals Co
- Ltd
- Hwaseong 445-944, Republic of Korea
| | - Won-Hun Ham
- School of Pharmacy
- Sungkyunkwan University
- Suwon 440-746, Republic of Korea
| |
Collapse
|
18
|
Khan A, Xing J, Zhao J, Kan Y, Zhang W, Zhang YJ. Palladium-Catalyzed Enantioselective Decarboxylative Cycloaddition of Vinylethylene Carbonates with Isocyanates. Chemistry 2014; 21:120-4. [DOI: 10.1002/chem.201405830] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Indexed: 11/11/2022]
|
19
|
Piotrowska DG, Głowacka IE, Wróblewski AE. Stereochemistry of the Three-Component Reaction Between the Ley′S Aldehyde, Benzyl Amines, and Trialkyl Phosphites. A New Approach to the Protected Enantiomerically Pure 1-Amino-2,3-Dihydroxypropylphosphonates. PHOSPHORUS SULFUR 2014. [DOI: 10.1080/10426507.2014.883624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Dorota G. Piotrowska
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Łódź, Poland
| | - Iwona E. Głowacka
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Łódź, Poland
| | - Andrzej E. Wróblewski
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Łódź, Poland
| |
Collapse
|
20
|
Saavedra CJ, Boto A, Hernández R. “Customizable” Units in Di- and Tripeptides: Selective Conversion into Substituted Dehydroamino Acids. Org Lett 2012; 14:3788-91. [DOI: 10.1021/ol301676z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología CSIC, Avda. Astrofísico Fco. Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología CSIC, Avda. Astrofísico Fco. Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Rosendo Hernández
- Instituto de Productos Naturales y Agrobiología CSIC, Avda. Astrofísico Fco. Sánchez 3, 38206 La Laguna, Tenerife, Spain
| |
Collapse
|
21
|
Martinková M, Gonda J, Uhríková A, Raschmanová JŠ, Kuchár J. An efficient synthesis of the polar part of sulfamisterin and its analogs. Carbohydr Res 2012; 352:23-36. [DOI: 10.1016/j.carres.2012.02.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 02/16/2012] [Accepted: 02/17/2012] [Indexed: 11/15/2022]
Affiliation(s)
- Miroslava Martinková
- Institute of Chemical Sciences, Department of Organic Chemistry, P.J. Šafárik University, Moyzesova 11, Sk-040 01 Košice, Slovak Republic.
| | | | | | | | | |
Collapse
|
22
|
Remote Stereocontrol in [3,3]-Sigmatropic Rearrangements: Application to the Total Synthesis of the Immunosuppressant Mycestericin G. Org Lett 2012; 14:756-9. [DOI: 10.1021/ol203300k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
23
|
Berhal F, Takechi S, Kumagai N, Shibasaki M. Catalytic Asymmetric Amination of N-Nonsubstituted α-Alkoxycarbonyl Amides: Concise Enantioselective Synthesis of Mycestericin F and G. Chemistry 2011; 17:1915-21. [DOI: 10.1002/chem.201002874] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Indexed: 11/06/2022]
|
24
|
Martelli G, Orena M, Rinaldi S, Sabatino P. Diastereoselective functionalisation of Baylis–Hillman adducts: a convenient approach to α-methyl-α-amino acids. Amino Acids 2010; 39:489-97. [DOI: 10.1007/s00726-009-0465-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2009] [Accepted: 12/24/2009] [Indexed: 11/24/2022]
|
25
|
Yamanaka H, Sato K, Sato H, Iida M, Oishi T, Chida N. Total synthesis of mycestericin A and its 14-epimer. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|