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Peixoto de Abreu Lima A, Suescun L, Pandolfi E, Schapiro V. The first enantioselective strategy towards speciosins. NEW J CHEM 2019. [DOI: 10.1039/c8nj06158k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We introduce chirality with a biotransformation and a side chain with a Sonogashira reaction, for the first enantioselective strategy for speciosins.
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Affiliation(s)
| | - Leopoldo Suescun
- Cryssmat-Lab/Cátedra de Física/DETEMA
- Facultad de Química
- Universidad de la República
- Montevideo
- Uruguay
| | - Enrique Pandolfi
- Laboratorio de Síntesis Orgánica
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de la República
- Montevideo
| | - Valeria Schapiro
- Laboratorio de Síntesis Orgánica
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de la República
- Montevideo
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2
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Le Grognec E, Chrétien JM, Zammattio F, Quintard JP. Methodologies Limiting or Avoiding Contamination by Organotin Residues in Organic Synthesis. Chem Rev 2015; 115:10207-60. [DOI: 10.1021/acs.chemrev.5b00196] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Erwan Le Grognec
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jean-Mathieu Chrétien
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Françoise Zammattio
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jean-Paul Quintard
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
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3
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Ren Q, Huang J, Wang L, Li W, Liu H, Jiang X, Wang J. Highly Efficient Assembly of 3-Hydroxy Oxindole Scaffold via a Catalytic Decarboxylative [1,2]-Addition Strategy. ACS Catal 2012. [DOI: 10.1021/cs300628w] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiao Ren
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore, 117543
| | - Jiayao Huang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore, 117543
| | - Lei Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore, 117543
| | - Wenjun Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore, 117543
| | - Hui Liu
- Shanghai
Key Laboratory of Green
Chemistry and Chemical Process, East China Normal University, 3663N Zhongshan Road, Shanghai, 200062, China
| | - Xuefeng Jiang
- Shanghai
Key Laboratory of Green
Chemistry and Chemical Process, East China Normal University, 3663N Zhongshan Road, Shanghai, 200062, China
| | - Jian Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,
Singapore, 117543
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4
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Tan HR, Ng HF, Chang J, Wang J. Highly Enantioselective Assembly of Functionalized Tetrahydroquinolines with Creation of an All-Carbon Quaternary Center. Chemistry 2012; 18:3865-70. [DOI: 10.1002/chem.201103136] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Indexed: 11/08/2022]
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5
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Peng S, Wang L, Guo H, Sun S, Wang J. Facile synthesis of 4-substituted 3,4-dihydrocoumarins via an organocatalytic double decarboxylation process. Org Biomol Chem 2012; 10:2537-41. [PMID: 22366754 DOI: 10.1039/c2ob25075f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
3,4-Dihydrocoumarins, considered to be valuable building blocks, have attracted considerable attention due to their various biological activities. Herein, we have documented an efficient and convenient double decarboxylation process for the synthesis of 4-substituted 3,4-dihydrocoumarin in moderate to excellent yields under mild reaction conditions (up to 98%).
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Affiliation(s)
- Shiyong Peng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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6
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Beletskaya IP, Ananikov VP. Transition-metal-catalyzed C-S, C-Se, and C-Te bond formation via cross-coupling and atom-economic addition reactions. Chem Rev 2011; 111:1596-636. [PMID: 21391564 DOI: 10.1021/cr100347k] [Citation(s) in RCA: 1250] [Impact Index Per Article: 96.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Irina P Beletskaya
- Lomonosov Moscow State University, Chemistry Department, Vorob'evy gory, Moscow 119899, Russia.
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7
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Greenland BW, Liu S, Cavalli G, Alpay E, Steinke JH. Synthesis of beaded poly(vinyl ether) solid supports with unique solvent compatibility. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.04.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
Drug discovery has long suffered from the difficulty of having to place pharmacophoric groups in just the right spatial arrangement to elicit the desired biological response. Although some molecule classes have been discovered that seem to be privileged structures for at least some drug-receptor interactions, there remains the challenge to design and synthesize molecules with high specific affinity to pharmacologically important targets. With their high density of stereochemical information and their relative rigidity, carbohydrates provide excellent platforms upon which to display a number of substituents in a sterically defined way, hence offering the opportunity to harness their unique features for the drug-discovery process. This review highlights the progress that has been made in the development of carbohydrate scaffolds for drug discovery.
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Affiliation(s)
- Wim Meutermans
- Alchemia Ltd., PO Box 6242, Upper Mt Gravatt, Qld 4122, Australia
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10
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Peri F, Nicotra F, Leslie CP, Micheli F, Seneci P, Marchioro C. d‐Glucose as a Regioselectively Addressable Scaffold for Combinatorial Chemistry on Solid Phase. J Carbohydr Chem 2006. [DOI: 10.1081/car-120019014] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Francesco Peri
- a Department of Biotechnology and Biosciences , University of Milano–Bicocca , Piazza Della Scienza, 2, I‐20126, Italy
| | - Francesco Nicotra
- a Department of Biotechnology and Biosciences , University of Milano–Bicocca , Piazza Della Scienza, 2, I‐20126, Italy
| | - Colin P. Leslie
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
| | - Fabrizio Micheli
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
| | - Pierfausto Seneci
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
| | - Carla Marchioro
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
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11
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12
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Bellomo A, Gonzalez D. Catalytic thiolysis of chemoenzymatically derived vinylepoxides. Efficient synthesis of homochiral phenylthioconduritol F. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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ZrCl4 dispersed on dry silica gel provides a useful reagent for S-alkylation of thiols with alcohols under solvent-free conditions. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.10.137] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Mispelaere-Canivet C, Spindler JF, Perrio S, Beslin P. Pd2(dba)3/Xantphos-catalyzed cross-coupling of thiols and aryl bromides/triflates. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.03.078] [Citation(s) in RCA: 153] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Tulla-Puche J, Barany G. Development of resin-to-resin transfer reactions (RRTR) using Sonogashira chemistry. Tetrahedron 2005. [DOI: 10.1016/j.tet.2004.12.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Bosanac T, Wilcox CS. Precipiton reagents: precipiton phosphines for solution-phase reductions. Org Lett 2005; 6:2321-4. [PMID: 15228269 DOI: 10.1021/ol049369+] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] [structure: see text] [structure: see text] Several Precipiton phosphines were prepared and employed in the Staudinger reaction and in the reduction of secondary ozonides. Both amines and aldehdyes were obtained in good to excellent yields and purities. After use of the phosphine, isomerization and precipitation of the spent phosphorus reagent were induced by exposure to visible light in the presence of erythrosin B, a triplet sensitizer. Products were isolated by simple filtration. The use of the triplet sensitizer has the added advantage of eliminating [2 + 2] cycloaddition reactions between trans-Precipitons.
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Affiliation(s)
- Todd Bosanac
- Department of Chemistry and The Combinatorial Chemistry Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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17
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Kreis M, Nising CF, Schroen M, Knepper K, Bräse S. Efficient solid phase synthesis of benzo[1,2,3]thiadiazoles and related structures. Org Biomol Chem 2005; 3:1835-7. [PMID: 15889164 DOI: 10.1039/b504900h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first solid-phase synthesis of benzo[1,2,3]thiadiazoles was achieved by starting from resin bound ortho bromo or iodo triazenes and using a functionalization on cleavage.
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Affiliation(s)
- Michael Kreis
- Institut für Organische Chemie, Universität Karlsruhe (TH), Fritz-Haber-Weg 6, D-76131, Karlsruhe, Germany
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18
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Riva-Toniolo C, Müller S, Schaub J, Brill WKD. Catalysis of nucleophilic aromatic substitutions in the 2,6,8-trisubstituted purines and application in the synthesis of combinatorial libraries. Mol Divers 2004; 6:43-53. [PMID: 12945741 DOI: 10.1023/a:1024895515316] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The following paper summarizes our work on compound libraries of 2,6,8-trisubstituted purines. This synthesis route on a polystyrene support begins with 2,6-dichloro purine making extensive use of catalysis. During the synthesis the polymer bound purines were brominated selectively on C8. The substitution reaction of C6-Cl by amines was found to be acid catalyzed. The substitution of C2-Cl by amines and aryls, as well as the substitution of a C8-Br by aryls, alkenyl and alkynyl groups can be catalyzed by transition metals. Under some bromination conditions novel selective oxidative transformations of 2-amino groups in 2,6-diamino purines have been found.
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19
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The Literature of Heterocyclic Chemistry, Part VIII, 1999–2001. ADVANCES IN HETEROCYCLIC CHEMISTRY 2004. [DOI: 10.1016/s0065-2725(04)87001-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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20
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El Kazzouli S, Berteina-Raboin S, Mouaddib A, Guillaumet G. Solid-phase synthesis of imidazo[1,2-a]pyridines and imidazo[1,2-a]pyrimidines. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01532-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Cavalli G, Shooter AG, Pears DA, Steinke JHG. Non-PEG-Derived Polyethers as Solid Supports. 1. Synthesis, Swelling Studies, and Functionalization. ACTA ACUST UNITED AC 2003. [DOI: 10.1021/cc0200686] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gabriel Cavalli
- Department of Chemistry, Imperial College London, South Kensington, SW72AY, U.K., and Avecia Ltd., PO Box 42, Hexagon House, Blackley, Manchester M9 8ZS, U.K
| | - Andrew G. Shooter
- Department of Chemistry, Imperial College London, South Kensington, SW72AY, U.K., and Avecia Ltd., PO Box 42, Hexagon House, Blackley, Manchester M9 8ZS, U.K
| | - David A. Pears
- Department of Chemistry, Imperial College London, South Kensington, SW72AY, U.K., and Avecia Ltd., PO Box 42, Hexagon House, Blackley, Manchester M9 8ZS, U.K
| | - Joachim H. G. Steinke
- Department of Chemistry, Imperial College London, South Kensington, SW72AY, U.K., and Avecia Ltd., PO Box 42, Hexagon House, Blackley, Manchester M9 8ZS, U.K
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22
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Carbonneau C, Durand JO, Granier M, Lanneau GF. Studies of the functionalisation of organic-inorganic hybrid materials by using the Heck reaction. Chem Commun (Camb) 2003:1166-7. [PMID: 12778717 DOI: 10.1039/b301355c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cogelation of 4-styryltrimethoxysilane was performed using NH4F as catalyst. The functionalisation of the styryl group was then studied by using Heck's reaction with ethyl 4-bromobenzyl- or 4-bromoarylvinylbenzyl-phosphonates. The efficiency of the solid-phase reaction was highly dependent on the texture of the solids.
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Affiliation(s)
- Céline Carbonneau
- UMR 5637 case 007, Université Montpellier 2, Place Eugène Bataillon, 34095 Montpellier.
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23
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Development of a 9-borabicyclo[3.3.1]nonane-mediated solid-phase Suzuki coupling for the preparation of dihydrostilbene analogs. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)00415-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Hobson ST, Boecker JD, Gifford JH, Nohe TL, Wierks CH. Synthesis and unusual stability of pyridine andn-methyl pyridinium 1,3-dioxolanes. J Heterocycl Chem 2003. [DOI: 10.1002/jhet.5570400212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Curran DP, Yang F, Cheong JH. Relative rates and approximate rate constants for inter- and intramolecular hydrogen transfer reactions of polymer-bound radicals. J Am Chem Soc 2002; 124:14993-5000. [PMID: 12475342 DOI: 10.1021/ja028249z] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Measurements of relative rates and rate constants for inter- and intramolecular hydrogen transfer reactions of polymer-bound radicals are reported. The relative rate of reaction of resin-bound primary alkyl radical with tributyltin hydride is about 2 times slower than that of the benchmark reaction in solution. The data do not reveal whether this is due to a reduced rate constant or a lower concentration of tin hydride in the resin phase. Yet the difference between solid and solution reactions is small enough to be neglected, and it appears that rate constants measured in solution can be applied directly to resin-bound radicals. A resin-bound aryl radical abstracts a hydrogen atom rapidly (k = 3 x 10(6) s(-1)) from its own polymer backbone and linker, and a simplified view of the resin as a "solvent" is suggested for predicting such effects with other polymers and linkers. Rapid cyclizations of resin-bound aryl radicals will be possible, but slower cyclizations and most bimolecular reactions will be difficult due to the competing polymer/linker hydrogen transfer.
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Affiliation(s)
- Dennis P Curran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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27
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Chang S, Na Y, Shin HJ, Choi E, Jeong LS. A short and efficient synthetic approach to hydroxy (E)-stilbenoids via solid-phase cross metathesis. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01528-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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28
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Phoon CW, Sim MM. Solid-phase syntheses of 1,2,4-trisubstituted urazole and thiourazole derivatives. JOURNAL OF COMBINATORIAL CHEMISTRY 2002; 4:491-5. [PMID: 12217021 DOI: 10.1021/cc0200134] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Solid-phase syntheses of 1,2,4-trisubstituted urazole and thiourazole derivatives have been accomplished. The synthesis began with the coupling of carbonylimidazole-Wang resin with a disubstituted hydrazine. The resultant carbazate was coupled with an isocyanate or isothiocyanate. Subsequent heating of the resin in the presence of triethylamine or potassium t-butoxide induced cyclization and released the desired (thio)urazole into solution. Most of the products were obtained in high yields and purities. Structural diversity can be further expanded at the R(2) substituent by performing the palladium-mediated Suzuki coupling reaction.
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Affiliation(s)
- Chee Wee Phoon
- Medicinal and Combinatorial Chemistry Laboratory, Institute of Molecular and Cell Biology, 30 Medical Drive, Singapore 117609
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Tao ZF, Leitheiser CJ, Smith KL, Hashimoto S, Hecht SM. Solid-phase synthesis of deglycobleomycins: a C-terminal tetraamine linker that permits direct evaluation of resin-bound bleomycins. Bioconjug Chem 2002; 13:426-34. [PMID: 12009930 DOI: 10.1021/bc010083o] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Deglycobleomycin analogues having different length polyamine side chains at the C-terminus were synthesized using a novel solid-phase synthesis strategy that produces fully deprotected deglycobleomycin congeners attached to the resin. Detailed studies of DNA cleavage by these compounds and their resin-bound counterparts using supercoiled plasmid DNAs and DNA restriction fragments as substrates revealed that (i) the length of the polyamine side chain of free deglycoBLM had limited effect on its DNA cleavage potency or sequence selectivity, and (ii) the nature of the linker moiety between the resin and attached deglycobleomycin had a more substantial effect on the potency of DNA cleavage, but no effect on sequence selectivity of resin-bound deglycoBLMs. Resin-bound 4 exhibited efficient DNA cleavage, indicating that its tetraamine linker moiety could be used for the elaboration and direct evaluation of bleomycin congeners attached to resins.
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Affiliation(s)
- Zhi-Fu Tao
- Department of Chemistry, University of Virginia, Charlottesville 22901, USA
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31
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Bosanac T, Wilcox CS. A photoactivated precipiton for reagent sequestration in solution-phase synthesis. J Am Chem Soc 2002; 124:4194-5. [PMID: 11960432 DOI: 10.1021/ja017577g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Precipitons are molecular phase tags for chemical separations. They can be switched from a high-solubility to a low-solubility state to facilitate product, reagent, or catalyst isolation. This paper presents the first photoactivated precipiton and demonstrates that this precipiton is an efficient amine scavenging agent in solution-phase syntheses of amides, ureas, and imines. This approach to amine scavenging offers advantages over solid-phase scavenging methods. The amine is captured in a homogeneous medium, so the capture is much faster than seen with isocyanate resins, and only a small excess of the scavenger is required.
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Affiliation(s)
- Todd Bosanac
- Department of Chemistry and The Combinatorial Chemistry Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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32
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El Kazzouli S, Berteina-Raboin S, Mouaddib A, Guillaumet G. Solid support synthesis of 2,4-disubstituted thiazoles and aminothiazoles. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00471-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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34
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Arya P, Joseph R, Chou DTH. Toward high-throughput synthesis of complex natural product-like compounds in the genomics and proteomics age. CHEMISTRY & BIOLOGY 2002; 9:145-56. [PMID: 11880029 DOI: 10.1016/s1074-5521(02)00105-9] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In the age of high-throughput biology, novel genes and proteins are emerging quickly. The need for developing organic synthesis-derived methods that allow rapid access to polyfunctional, complex natural product-like compounds is growing constantly, largely because these small-molecule-based compounds serve as smart, powerful tools both in understanding the roles and functions of emerging biological targets and in validating their biological responses. Developing asymmetric synthesis-derived organic reactions on solid phase allows the synthesis of complex natural product-like compounds in a high-throughput manner. Solid phase organic synthesis is now commonly utilized in the library synthesis of rather simple compounds (i.e., compounds with no multiple stereogenic centers). With few exceptions, the synthesis of complex natural product-like derivatives is still in its infancy. Some recent efforts made in this area indicate opportunities yet to be explored.
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Affiliation(s)
- Prabhat Arya
- Chemical Biology Program, Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada
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35
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36
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Gallagher WP, Terstiege I, Maleczka RE. Stille couplings catalytic in tin: the "Sn-O" approach. J Am Chem Soc 2001; 123:3194-204. [PMID: 11457053 DOI: 10.1021/ja0035295] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A one-pot tandem Pd-catalyzed hydrostannylation/Stille coupling protocol for the stereoselective generation of vinyltins and their subsequent union, employing only catalytic amounts of tin, is described. By recycling the organotin halide Stille byproduct back to organotin hydride, a hydrostannylation/cross-coupling sequence can be carried out with catalytic amounts of tin. Such a process is most effective with Me(3)SnCl serving as the tin source. This protocol allows a 94% reduction of the tin requirement, while maintaining good yields (up to 90%) for a variety of Stille products. Furthermore, since one cycle requires the tin to undergo at least four transformations, each moiety of trialkyltin is experiencing a minimum of 60 reactions over the course of the hydrostannylation/Stille sequence.
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Affiliation(s)
- W P Gallagher
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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37
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Gopalsamy A, Yang H. Combinatorial Synthesis of Heterocycles: Solid-Phase Synthesis of 6-Amino-2,4-dioxo-3,4-dihydro-1,3,5-triazine Derivatives. ACTA ACUST UNITED AC 2001; 3:278-83. [PMID: 11350251 DOI: 10.1021/cc000091w] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new solid-phase synthesis of trisubstituted 6-amino-2,4-dioxo-3,4-dihydro-1,3,5-triazines from a resin-bound amine component is described. The amine was readily converted to the corresponding polymer-bound S-methylthiopseudourea, which upon reaction with secondary amines gave the disubstituted guanidines. Cyclization of the polymer-bound guanidines with chlorocarbonylisocyanate afforded the triazinediones. The third point of diversity was introduced by the Mitsunobu reaction. The method is amenable for iterative combinatorial library generation.
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Affiliation(s)
- A Gopalsamy
- Chemical Sciences Division, Wyeth-Ayerst Research, Pearl River, New York 10965, USA
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Pourbaix C, Carreaux F, Carboni B. Metal-catalyzed release of supported boronic acids for C-C bond formation. Org Lett 2001; 3:803-5. [PMID: 11263886 DOI: 10.1021/ol000338y] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The viability of solid-supported boronic acids as reagents for Suzuki couplings and nucleophilic additions to aldehydes and enones was successfully demonstrated. This metal-catalyzed cleavage strategy allows the synthesis of a series of functionalized biphenyl products, benzylic alcohols, and beta-substituted ketones.
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Affiliation(s)
- C Pourbaix
- Université Rennes 1, Synthèse et Electrosynthèse organiques, UMR 6510 associée au CNRS, Campus de Beaulieu, 35042 Rennes Cedex, France
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