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Guttenberger N, Glabonjat RA, Jensen KB, Zangger K, Francesconi KA. Synthesis of two arsenic-containing cyclic ethers: model compounds for a novel group of naturally-occurring arsenolipids. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Liu J, Liu Y, Zhang X, Zhang C, Gao Y, Wang L, Du Y. Total Synthesis of (−)-Orthodiffenes A and C. J Org Chem 2012; 77:9718-23. [DOI: 10.1021/jo301829p] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jun Liu
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- State
Key Laboratory of Natural
and Biomimetic Drugs, Peking University, Beijing, 100191, China
| | - Yi Liu
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- School of Chemistry and Chemical
Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xing Zhang
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- School of Chemistry and Chemical
Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chaoli Zhang
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- School of Chemistry and Chemical
Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yangguang Gao
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- School of Chemistry and Chemical
Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - LinLin Wang
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- School of Chemistry and Chemical
Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuguo Du
- State Key Laboratory
of Environmental
Chemistry and Eco-toxicology, Research Center for Eco-Environmental
Sciences, Chinese Academy of Sciences,
Beijing 100085, China
- School of Chemistry and Chemical
Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Guyenne S, León EI, Martín A, Pérez-Martín I, Suárez E. Intramolecular 1,8-Hydrogen Atom Transfer Reactions in Disaccharide Systems Containing Furanose Units. J Org Chem 2012; 77:7371-91. [DOI: 10.1021/jo301153u] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sabrina Guyenne
- Instituto de Productos Naturales y Agrobiología del CSIC, Carretera de La Esperanza 3, 38206 La Laguna,
Tenerife, Spain
| | - Elisa I. León
- Instituto de Productos Naturales y Agrobiología del CSIC, Carretera de La Esperanza 3, 38206 La Laguna,
Tenerife, Spain
| | - Angeles Martín
- Instituto de Productos Naturales y Agrobiología del CSIC, Carretera de La Esperanza 3, 38206 La Laguna,
Tenerife, Spain
| | - Inés Pérez-Martín
- Instituto de Productos Naturales y Agrobiología del CSIC, Carretera de La Esperanza 3, 38206 La Laguna,
Tenerife, Spain
| | - Ernesto Suárez
- Instituto de Productos Naturales y Agrobiología del CSIC, Carretera de La Esperanza 3, 38206 La Laguna,
Tenerife, Spain
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4
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Raghavendra Swamy N, Suryakiran N, Paradesi Naidu P, Venkateswarlu Y. Synthesis of N-homobicyclic dideoxynucleoside analogues. Carbohydr Res 2012; 352:191-6. [DOI: 10.1016/j.carres.2012.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 01/18/2012] [Accepted: 01/22/2012] [Indexed: 10/14/2022]
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Thirupathi B, Reddy PP, Mohapatra DK. A Carbohydrate-Based Total Syntheses of (+)-Pyrenolide D and (−)-4-epi-Pyrenolide D. J Org Chem 2011; 76:9835-40. [DOI: 10.1021/jo201570h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Barla Thirupathi
- Organic Chemistry Division-I, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007,
India
| | - P. Purushotam Reddy
- Organic Chemistry Division-I, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007,
India
| | - Debendra K. Mohapatra
- Organic Chemistry Division-I, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007,
India
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Sharma GVM, Subash V, Reddy NY, Narsimulu K, Ravi R, Jadhav VB, Murthy USN, Kishore KH, Kunwar AC. Synthesis and conformational studies of peptides from new C-linked carbo-β-amino acids (β-Caas) with anomeric methylamino- and difluorophenyl moieties. Org Biomol Chem 2008; 6:4142-56. [DOI: 10.1039/b810817j] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Stereoselective synthesis of (2R,3S,4S,5R)-trans-3,4-dihydroxy-5-(4-fluorophenoxymethyl)-2-(1-N-hydroxyureidyl-3-butyn-4-yl)tetrahydrofuran and (2R,3S,4S,5R)-trans-5-ethynyl-2-(4-fluorophenoxymethyl)-3,4-O-isopropylidene tetrahydrofuran from mannose diacetonide. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.01.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Wang Z, Shao H, Lacroix E, Wu SH, Jennings HJ, Zou W. Epimerization of 2‘-Carbonylalkyl-C-Glycosides via Enolation, β-Elimination and Intramolecular Cycloaddition. J Org Chem 2003; 68:8097-105. [PMID: 14535789 DOI: 10.1021/jo034446k] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Treatment of 2'-carbonyl-alpha-C-glycopyranosides of gluco, galacto, manno, 2-deoxy, and 2-azido sugars with 4% NaOMe resulted in anomeric epimerization to give their respective beta-anomers in good to excellent yields. The epimerization of the 2'-aldehyde of alpha-C-galactopyranoside (10) in deuterium methanol, which afforded the beta-anomer with exclusive deuterium replacements at the 1'-position, excluded the possibility of the exo-glycal as being involved as an intermediate. When 2'-aldehyde (36) and 2'-ketone (41) of 2,3-di-O-benzyl-alpha/beta-l-C-arabinofuranoside were used as substrates we were able to obtain the respective equatorial alpha-C-arabinopyranosides (37 and 42). These observations confirmed that the epimerization involves an acyclic alpha,beta-unsaturated aldehyde or ketone, which is formed by the enolation of 2'-carbonyl-alpha-C-glycoside with subsequent beta-elimination. Thereafter an intramolecular hetero-Michael cycloaddition occurs, leading to the formation of thermodynamically controlled stable products, which were exclusively the equatorial C-glycopyranosides, except in the case of 2'-carbonyl-C-furanosides, where a mixture of two anomers was obtained.
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Affiliation(s)
- Zerong Wang
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada
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11
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Francisco CG, Herrera AJ, Suárez E. Intramolecular hydrogen abstraction reaction promoted by N-radicals in carbohydrates. Synthesis of chiral 7-oxa-2-azabicyclo[2.2.1]heptane and 8-oxa-6-azabicyclo[3.2.1]octane ring systems. J Org Chem 2003; 68:1012-7. [PMID: 12558429 DOI: 10.1021/jo026314h] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of phenyl and benzyl amidophosphates and alkyl and benzyl carbamate derivatives of aminoalditols with (diacetoxyiodo)benzene or iodosylbenzene and iodine is a mild and selective procedure for the synthesis of chiral 7-oxa-2-azabicyclo[2.2.1]heptane and 8-oxa-6-azabicyclo[3.2.1]octane ring systems under neutral conditions. This reaction can be considered to be an intramolecular N-glycosidation that goes through an intramolecular 1,5-hydrogen abstraction promoted by an N-amido radical followed by oxidation of the transient C-radical intermediate to an oxycarbenium ion. This methodology proved to be useful not only as a suitable strategy for the preparation of these bicyclic arrays but also for the selective oxidation of specific carbons of the carbohydrate skeleton, constituting a good procedure for the synthesis of protected N,O-uloses.
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Affiliation(s)
- Cosme G Francisco
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Carretera de La Esperanza 3, 38206 La Laguna, Tenerife, Spain
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12
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Francisco CG, Herrera AJ, Suárez E. Intramolecular hydrogen abstraction reaction promoted by alkoxy radicals in carbohydrates. Synthesis of chiral 2,7-dioxabicyclo[2.2.1]heptane and 6,8-dioxabicyclo[3.2.1]octane ring systems. J Org Chem 2002; 67:7439-45. [PMID: 12375977 DOI: 10.1021/jo026004z] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of specifically protected anhydroalditols with (diacetoxyiodo)benzene or iodosylbenzene and iodine is a mild and selective procedure for the synthesis of chiral 6,8-dioxabicyclo[3.2.1]octane and 2,7-dioxabicyclo[2.2.1]heptane ring systems under neutral conditions. This reaction can be considered to be an intramolecular glycosidation that goes through an intramolecular hydrogen abstraction promoted by an alkoxy radical followed by oxidation of the transient C-radical intermediate to an oxycarbenium ion. This methodology is useful not only for the preparation of chiral synthons but also for the selective oxidation of specific carbons of the carbohydrate skeleton, constituting a good procedure for the synthesis of protected uloses.
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Affiliation(s)
- Cosme G Francisco
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Carretera de La Esperanza 3, 38206 La Laguna, Tenerife, Spain
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A mild and efficient method for chemoselective deprotection of acetonides by bismuth(III) trichloride. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01809-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Dondoni A, Marra A, Mizuno M, Giovannini PP. Linear total synthetic routes to beta-D-C-(1,6)-linked oligoglucoses and oligogalactoses up to pentaoses by iterative Wittig olefination assembly. J Org Chem 2002; 67:4186-99. [PMID: 12054954 DOI: 10.1021/jo011142u] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two complementary routes, A and B, have been followed for the stepwise iterative assembly of beta-D-(1,6)-glucopyranose and galactopyranose residues through methylene bridges. In route A the building block was constituted by 2,3,4-tri-O-benzyl-6-O-tert-butyldiphenylsilyl (O-TBDPS) beta-linked galactosylmethylenephosphorane, while in route B the building block was a beta-linked formyl C-glycopyranoside with a similar orthogonal protection of hydroxy groups. In route A each cycle consisted of the reaction of the phosphorane building block with a sugar residue bearing a formyl group at the C-5 carbon atom (coupling) and transformation of the O-TBDPS-protected primary alcohol into the formyl group (arming). Accordingly, route A is defined as the aldehyde route. On the other hand, each cycle in route B involved the coupling of the sugar aldehyde building block with a substrate bearing a phosphorus ylide at C-6 and introduction of the phosphonium group in the arming step as a precursor of the ylide functionality. Accordingly, route B is defined as the ylide route. The efficiency of route A proved to be seriously hampered by the 1,2-elimination of BnOH under the basic reaction conditions of the Wittig olefination, giving rise to the formation of substantial amounts of enopyranose. On the other hand, the ylide route B proved to be more efficient since very good yields (70-93%) of the isolated Wittig products were obtained throughout four consecutive cycles. Individual olefins and polyolefins obtained by routes A and B using gluco and galacto substrates were reduced and debenzylated in one pot by H(2)/Pd(OH)(2) to give the corresponding beta-D-C-(1,6)-linked oligosaccharides up to the pentaose stage. The latter compounds were fully characterized by high-field NMR spectroscopy (500 MHz).
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Affiliation(s)
- Alessandro Dondoni
- Laboratorio di Chimica Organica, Dipartimento di Chimica, Università di Ferrara, Via Borsari 46, 44100, Italy.
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Sharma G, Reddy V, Chander A, Reddy K. Tetra-n-butylammonium fluoride: an efficient base for aza-Michael addition—synthesis of glycosyl β-amino acid esters. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0957-4166(02)00047-2] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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16
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Francisco* CG, Herrera AJ, Suárez E. Intramolecular hydrogen abstraction reaction in carbohydrate chemistry. Synthesis of chiral 2,7-dioxabicyclo[2.2.1]heptane and 6,8-dioxabicyclo[3.2.1]octane ring systems. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)01393-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Francisco CG, Herrera AJ, Suárez E. Intramolecular hydrogen abstraction promoted by N-radicals: synthesis of chiral 7-oxa-2-azabicyclo[2.2.1]heptane and 8-oxa-6-azabicyclo[3.2.1]octane ring systems. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0957-4166(00)00364-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Mereyala HB, Gadikota RR, Joe M, Arora SK, Dastidar SG, Agarwal S. Synthesis and antitumor activity of goniofufurone analogues. Bioorg Med Chem 1999; 7:2095-103. [PMID: 10530960 DOI: 10.1016/s0968-0896(99)00164-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Synthesis and antitumor activity of goniofufurone analogues 15, 16, 17, 33, and 46 is reported. Key step in the synthesis is Pd (II) mediated oxidative cyclisation of vinyl-(hydroxy) furans 18, 19 to the corresponding lactols 32, 43. Cytotoxicities of 15, 16, 17, 33, and 46 tested against six human cancer cell lines are reported. Change of stereochemistry at C-5, C-6 and C-7 position of goniofufurone (1) did not enhance the cytotoxicities significantly.
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Affiliation(s)
- H B Mereyala
- Organic Chemistry Division III, Indian Institute of Chemical Technology, Hyderabad.
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19
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Heras-López AM, Pino-González MS, Sarabia-García F, López-Herrera FJ. Reaction of O-Benzyl- and 4,6-O-Benzylidene-d-Gluco- and d-Galactopyranose Derivatives with Amide-Stabilized Sulfur Ylides: Stereoselectivity and Reactivity. J Org Chem 1998. [DOI: 10.1021/jo971824a] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. M. Heras-López
- Departamento de Bioquímica, Biología Molecular, y Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - M. S. Pino-González
- Departamento de Bioquímica, Biología Molecular, y Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - F. Sarabia-García
- Departamento de Bioquímica, Biología Molecular, y Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - F. J. López-Herrera
- Departamento de Bioquímica, Biología Molecular, y Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
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Li AH, Dai LX, Aggarwal VK. Asymmetric Ylide Reactions: Epoxidation, Cyclopropanation, Aziridination, Olefination, and Rearrangement. Chem Rev 1997; 97:2341-2372. [PMID: 11848902 DOI: 10.1021/cr960411r] [Citation(s) in RCA: 660] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- An-Hu Li
- Department of Chemistry, Dainton Building, The University of Sheffield, Sheffield S3 7HF, The United Kingdom
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López-Herrera FJ, Sarabia-García F. Condensation of D-mannosaldehyde derivatives with ethyl diazoacetate. An easy and stereoselective chain elongation methodology for carbohydrates: Application to new syntheses for KDO and 2-deoxy-β-KDO. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)00056-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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