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Yu H, Cheng J, Ding L, Khedri Z, Chen Y, Chin S, Lau K, Tiwari VK, Chen X. Chemoenzymatic synthesis of GD3 oligosaccharides and other disialyl glycans containing natural and non-natural sialic acids. J Am Chem Soc 2009; 131:18467-77. [PMID: 19947630 PMCID: PMC2811049 DOI: 10.1021/ja907750r] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In order to understand the biological importance of naturally occurring sialic acid variations on disialyl structures in nature, we developed an efficient two-step multienzyme approach for the synthesis of a series of GD3 ganglioside oligosaccharides and other disialyl glycans containing a terminal Siaalpha2-8Sia component with different natural and non-natural sialic acids. In the first step, alpha2-3- or alpha2-6-linked monosialylated oligosaccharides were obtained using a one-pot three-enzyme approach. These compounds were then used as acceptors for the alpha2-8-sialyltransferase activity of a recombinant truncated multifunctional Campylobacter jejuni sialyltransferase CstII mutant, CstIIDelta32(I53S), to produce disialyl oligosaccharides. The alpha2-8-sialyltransferase activity of CstIIDelta32(I53S) has promiscuous donor substrate specificity and can tolerate various substitutions at C-5 or C-9 of the sialic acid in CMP-sialic acid, while its acceptor substrate specificity is relatively restricted. The terminal sialic acid residues in the acceptable monosialylated oligosaccharide acceptors are restricted to Neu5Ac, Neu5Gc, KDN, and some of their C-9-modified forms but not their C-5 derivatives. The disialyl oligosaccharides obtained are valuable probes for their biological studies.
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Affiliation(s)
- Hai Yu
- Department of Chemistry, University of California-Davis, One Shields Avenue, Davis, California 95616, USA
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52
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Hanashima S, Sato KI, Ito Y, Yamaguchi Y. Silylene/Oxazolidinone Double-Locked Sialic Acid Building Blocks for Efficient Sialylation Reactions in Dichloromethane. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900543] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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53
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Study on systematizing the synthesis of the a-series ganglioside glycans GT1a, GD1a, and GM1 using the newly developed N-Troc-protected GM3 and GalN intermediates. Carbohydr Res 2009; 344:1453-63. [DOI: 10.1016/j.carres.2009.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Revised: 05/27/2009] [Accepted: 06/02/2009] [Indexed: 11/18/2022]
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54
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Abstract
A neuritegenic ganglioside from sea cucumber, HLG-2 (see figure), has been synthesized for the first time. The unique tandem of sialic acids, Neu5Gc-alpha(2,4)-NeuAc, was established by the combination of a reactive N-Troc sialyl donor and a 1,5-lactamized sialyl acceptor. The ceramide counterpart was assembled in a stereoselective manner. Direct connection of the trisaccharide and the ceramide successfully afforded a precursor of HLG-2, which was converted to ganglioside HLG-2 in pure form.A first synthesis of the neuritegenic ganglioside HLG-2, which was identified in extracts of the sea cucumber Holothuria leucospilota, is described. The characteristic sequence of the trisaccharide part, alpha-N-glycolylsialyl-(2,4)-alpha-N-acetylsialyl-(2,6)-glucoside, was efficiently assembled by coupling of a highly active N-2,2,2-trichloroethoxycarbonyl (Troc)-protected sialyl donor and a 1,5-lactamized sialyl acceptor with high stereoselectivity. The corresponding trisaccharyl imidate donor was directly glycosidated with the primary hydroxyl group of the ceramide part, producing protected HLG-2 in relatively high yield, global deprotection of which furnished ganglioside HLG-2 in highly pure form.
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Affiliation(s)
- Yuki Iwayama
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, Japan
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55
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56
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Ye D, Liu W, Zhang D, Feng E, Jiang H, Liu H. Efficient dehydrative sialylation of C-4-aminated sialyl-hemiketal donors with Ph2SO/Tf2O. J Org Chem 2009; 74:1733-5. [PMID: 19152263 DOI: 10.1021/jo802396a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient approach to the dehydrative sialylation of various substrates with C-4-aminated sialyl-hemiketal donors by using the reagent combination of diphenyl sulfoxide and triflic anhydride is reported. By using a C-4-hindered non-nucleophilic amine auxiliary, excellent yields and high alpha-stereoselectivities were obtained for coupling with a wide range of primary and secondary acceptors.
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Affiliation(s)
- Deju Ye
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
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57
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Hanashima S, Tomiya T, Ishikawa D, Akai S, Sato KI. Sialylation using N-glycolylneuraminyl phosphite donors to synthesize Neu5Gc-containing glycans. Carbohydr Res 2009; 344:959-65. [PMID: 19358980 DOI: 10.1016/j.carres.2009.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 03/04/2009] [Accepted: 03/05/2009] [Indexed: 10/21/2022]
Abstract
Efficient sialylations using N-glycolylneuraminic acid (Neu5Gc) phosphite donors having an acetyl or benzyl group on the glycolyl moiety are described in the synthesis of Neu5Gc-containing glycans. Both phosphite donors 1 and 2 were readily coupled with primary and secondary acceptor alcohols in propionitrile at -78 degrees C to provide the desired glycosides with good alpha-selectivities.
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Affiliation(s)
- Shinya Hanashima
- Material and Life Chemistry, Faculty of Engineering, Kanagawa University, Yokohama, Japan
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58
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Hanashima S, Ishikawa D, Akai S, Sato KI. Synthesis of the starfish ganglioside LLG-3 tetrasaccharide. Carbohydr Res 2009; 344:747-52. [PMID: 19281969 DOI: 10.1016/j.carres.2009.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Revised: 01/30/2009] [Accepted: 02/04/2009] [Indexed: 12/01/2022]
Abstract
The first synthesis of the ganglioside LLG-3 tetrasaccharide, which has attractive biological activities as well as a unique structure, is described. A C8-methoxy decorated sialic acid building block was initially prepared and a glycolic acid moiety was then introduced by sialylation. Amide condensation between the sialyl glycolic acid and an amino group at C5 on the sialyllactoside unit afforded the fully protected LLG-3 tetrasaccharide. Finally, the desired tetrasaccharide part of LLG-3 was obtained after careful global deprotection. [structure: see text].
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Affiliation(s)
- Shinya Hanashima
- Material and Life Chemistry, Faculty of Engineering, Kanagawa University, Yokohama, Kanagawa, Japan
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59
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Zhang P, Zuccolo AJ, Li W, Blake Zheng R, Ling CC. Probing a sialyltransferase’s recognition domain to prepare α(2,8)-linked oligosialosides and analogs. Chem Commun (Camb) 2009:4233-5. [DOI: 10.1039/b908933k] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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60
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Tanaka H, Tateno Y, Nishiura Y, Takahashi T. Efficient Synthesis of an α(2,9) Trisialic Acid by One-Pot Glycosylation and Polymer-Assisted Deprotection. Org Lett 2008; 10:5597-600. [DOI: 10.1021/ol802207e] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroshi Tanaka
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan
| | - Yusuke Tateno
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan
| | - Yuji Nishiura
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan
| | - Takashi Takahashi
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8552, Japan
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61
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62
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De Meo C, Priyadarshani U. C-5 Modifications in N-acetyl-neuraminic acid: scope and limitations. Carbohydr Res 2008; 343:1540-52. [DOI: 10.1016/j.carres.2008.04.007] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2008] [Revised: 04/02/2008] [Accepted: 04/06/2008] [Indexed: 11/24/2022]
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63
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Vohra Y, Vasan M, Venot A, Boons GJ. One-pot synthesis of oligosaccharides by combining reductive openings of benzylidene acetals and glycosylations. Org Lett 2008; 10:3247-50. [PMID: 18578494 DOI: 10.1021/ol801076w] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Combining triflic acid-promoted glycosylations of trichloroacetimidates with reductive opening of benzylidene acetals with triflic acid and triethylsilane as one-pot procedures provides access to a wide range of disaccharides and 2,4- and 3,4-branched trisaccharides.
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Affiliation(s)
- Yusuf Vohra
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, USA
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64
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Mydock LK, Demchenko AV. Application of the superarmed glycosyl donor to chemoselective oligosaccharide synthesis. Org Lett 2008; 10:2107-10. [PMID: 18447362 DOI: 10.1021/ol800648d] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Recently, we discovered a novel method for "superarming" glycosyl donors. Herein, this concept has been exemplified in one-pot oligosaccharide syntheses, whereby the superarmed glycosyl donor was chemoselectively activated over traditional "armed" and disarmed glycosyl acceptors. Direct side-by-side comparison of the reactivities of the classic armed and superarmed glycosyl donors further validates the credibility of the novel concept.
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Affiliation(s)
- Laurel K Mydock
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, St. Louis, Missouri 63121, USA
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65
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Design and efficient synthesis of novel GM2 analogues with respect to the elucidation of the function of GM2 activator. Glycoconj J 2008; 25:647-61. [DOI: 10.1007/s10719-008-9117-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Accepted: 02/12/2008] [Indexed: 10/22/2022]
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66
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Okamoto R, Souma S, Kajihara Y. Efficient Synthesis of MUC4 Sialylglycopeptide through the New Sialylation Using 5-Acetamido-Neuraminamide Donors. J Org Chem 2008; 73:3460-6. [DOI: 10.1021/jo702609p] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryo Okamoto
- International Graduate School of Arts and Sciences, Yokohama City University, 22-2, Seto, Kanazawa-ku, Yokohama, 236-0027, Japan
| | - Shingo Souma
- International Graduate School of Arts and Sciences, Yokohama City University, 22-2, Seto, Kanazawa-ku, Yokohama, 236-0027, Japan
| | - Yasuhiro Kajihara
- International Graduate School of Arts and Sciences, Yokohama City University, 22-2, Seto, Kanazawa-ku, Yokohama, 236-0027, Japan
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67
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Sun B, Srinivasan B, Huang X. Pre-activation-based one-pot synthesis of an alpha-(2,3)-sialylated core-fucosylated complex type bi-antennary N-glycan dodecasaccharide. Chemistry 2008; 14:7072-81. [PMID: 18601234 PMCID: PMC2733368 DOI: 10.1002/chem.200800757] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Synthesis of N-glycans is of high current interests due to their important biological properties. A highly efficient convergent strategy based on the pre-activation method for assembly of the complex type core fucosylated bi-antennary N-glycan dodecasaccharide has been developed. Retrosynthetically, this extremely challenging target is broken down to three modules: a sialyl disaccharide, a glucosamine building block and a hexasaccharide diol acceptor. The sialyl disaccharide was easily obtained by selective activation of a new 5-N-trichloroacetyl protected sialyl donor in the presence of a thiogalactoside acceptor. The hexasaccharide diol module was produced by double mannosylation of a fucosylated tetrasaccharide acceptor, which in turn was generated by glycosylation of a alpha-fucosylated disaccharide with a beta-mannose containing disaccharide donor. The union of the three modules was performed in one-pot giving the fully protected dodecasaccharide in high yield. This synthesis is characterized by minimum protective group and aglycon adjustment on oligosaccharide intermediates, thus greatly enhancing the overall synthetic efficiency. The modular feature of this strategy suggests that this method can be readily adapted to the synthesis of a wide variety of N-glycan structures.
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Affiliation(s)
- Bin Sun
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, Toledo, OH 43606, USA
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68
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Ando H. Development of Efficient and Stereoselective Glycosylation Reactions, Effected by a Functional Group Remote from the Anomeric Center of the Glycosyl Donor. TRENDS GLYCOSCI GLYC 2008. [DOI: 10.4052/tigg.20.141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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69
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Okamoto R, Kajihara Y. The study of glycopeptide syntheses: exploring concise O-linked sialylglycopeptide synthesis and glycopeptide coupling reaction. TRENDS GLYCOSCI GLYC 2008. [DOI: 10.4052/tigg.20.203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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70
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Hanashima S, Seeberger P. Total Synthesis of Sialylated Glycans Related to Avian and Human Influenza Virus Infection. Chem Asian J 2007; 2:1447-59. [DOI: 10.1002/asia.200600424] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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71
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Wang Z, Zhou L, El-Boubbou K, Ye XS, Huang X. Multi-component one-pot synthesis of the tumor-associated carbohydrate antigen Globo-H based on preactivation of thioglycosyl donors. J Org Chem 2007; 72:6409-20. [PMID: 17658849 PMCID: PMC2533580 DOI: 10.1021/jo070585g] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two efficient routes for the rapid assembly of the tumor-associated carbohydrate antigen Globo-H hexasaccharide 2 by a preactivation based iterative one-pot strategy are reported. The first method involves the sequential coupling of four glycosyl building blocks, leading to the desired hexasaccharide in 47% overall yield in one-pot synthesis. Although model studies on constructing the challenging Gal-alpha-(1-4)-Gal linkage in Gb3 trisaccharide yielded the desired alpha linkage almost exclusively, a similar approach to assemble the hexasaccharide led to the formation of a significant amount of beta anomer. As an alternative, the second synthesis utilized three components in one pot with the Gal-alpha-(1-4)-Gal linkage preformed, producing the desired hexasaccharide in a similar overall yield as the four component approach. Both methods demonstrate that oligosaccharides containing alpha and beta linkages within the same molecule can be constructed in one pot via a preactivation based approach with higher glyco-assembly efficiencies than the automated solid-phase synthesis strategy. Furthermore, because glycosylations can be carried out independent of anomeric reactivities of donors, it is not necessary to differentiate anomeric reactivities of building blocks through extensive protective group adjustment for chemoselective glycosylation. This confers great flexibilities in the building block design, allowing matching of the donor with the acceptor, leading to improved overall yield.
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Affiliation(s)
- Zhen Wang
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS Toledo, Ohio 43606
| | - Luyuan Zhou
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS Toledo, Ohio 43606
| | - Kheireddine El-Boubbou
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS Toledo, Ohio 43606
| | - Xin-shan Ye
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100083, China
| | - Xuefei Huang
- Department of Chemistry, The University of Toledo, 2801 W. Bancroft Street, MS Toledo, Ohio 43606
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72
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Abstract
Saccharide synthesis is a formidable task for synthetic chemists. Although in recent years many advances have been made in this area, development of more convenient and efficient strategies for oligosaccharide synthesis is still in great demand. This review focuses on one of these new strategies--the one-pot sequential glycosylation approach as a potent tool for oligosaccharide assembly.
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Affiliation(s)
- Yuhang Wang
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road #38, Beijing 100083, China
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73
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Crich D, Li W. O-sialylation with N-acetyl-5-n,4-o-carbonyl-protected thiosialoside donors in dichloromethane: facile and selective cleavage of the oxazolidinone ring. J Org Chem 2007; 72:2387-91. [PMID: 17338570 PMCID: PMC2615472 DOI: 10.1021/jo062431r] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An N-acetyl-5-N,4-O-carbonyl-protected thiosialoside donor, the structure of which has been defined through X-ray crystallography, was prepared and tested in couplings to a wide range of acceptors. This donor gives excellent yields and alpha-selectivities in linking with various primary alkyl and carbohydrate acceptors under the N-iodosuccinimide and trifluoromethanesulfonic acid in situ activation method at -40 degrees C in dichloromethane. The favorable affect of the oxazolidinone substructure for alpha-sialylation is illustrated by a comparison study with a N,N-diacetylsialyl donor, which exhibited inferior yields and alpha-selectivities. The sialylation selectivity is independent of the anomeric configuration of the donor, but is highly related to the reaction temperature under the NIS/TfOH activation method. In contrast to the NIS/TfOH method, the Ph2SO/Tf2O promotion gives beta-selective couplings in dichloromethane. The oxazolidinone of the N-acetyl-5-N,4-O-carbonyl protected sialosides, both alpha- and beta-anomers, could be cleaved cleanly by treatment with sodium methoxide under mild conditions without removal of the acetamide.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA.
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74
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Tanaka H, Yamada H, Takahashi T. Rapid Synthesis of Oligosaccharides Based on One-Pot Glycosylation. TRENDS GLYCOSCI GLYC 2007. [DOI: 10.4052/tigg.19.183] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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75
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76
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Crich D, Li W. Efficient glycosidation of a phenyl thiosialoside donor with diphenyl sulfoxide and triflic anhydride in dichloromethane. Org Lett 2006; 8:959-62. [PMID: 16494484 PMCID: PMC2615465 DOI: 10.1021/ol060030s] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The formation of sialic acid glycosides with a thiosialic acid derivative, diphenyl sulfoxide, and trifluoromethanesulfonic anhydride is reported. With an excess of diphenyl sulfoxide, glycal formation can be completely suppressed and excellent yields are obtained for coupling to a wide range of primary, secondary, and tertiary acceptors.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061,
| | - Wenju Li
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061,
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77
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Takahashi T, Tanaka H, Nishiura Y, Adachi M. Synthetic Study of a(2,8) Oligosialoside Using N-Troc Sialyl N-Phenyltrifluoroimidate. HETEROCYCLES 2006. [DOI: 10.3987/com-05-s(t)30] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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