99541-27-2Relevant articles and documents
Sodium the sulphur reaches the liver last of the ten Heavenly Stems five sugar intermediate and its preparation method
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Paragraph 0067-0069, (2017/03/14)
The invention relates to a fondaparinux sodium pentasaccharide intermediate in the technical field of chemical preparation and a preparation method thereof, particularly to a preparation method of the fondaparinux sodium pentasaccharide intermediate, and
PROCESS FOR THE PRODUCTION OF FONDAPARINUX SODIUM
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Paragraph 0047-0048, (2015/02/19)
The present invention provides novel processes for the preparation of Fondaparinux sodium by using the compound of formula ABC5. In some embodiments, the intermediates for the synthesis of Fondaparinux sodium, are also provided.
PROCESS FOR THE PRODUCTION OF FONDAPARINUX SODIUM
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Paragraph 0046; 0048; 0049, (2015/02/19)
The present invention provides improved processes of preparing Fondaparinux sodium comprising converting a compound of formula ABCDE4 to Fondaparinux sodium at a reaction pH of no more than about 9.0. In some embodiments, the intermediates for the synthes
PROCESS FOR THE PRODUCTION OF FONDAPARINUX SODIUM
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Paragraph 0039; 0040, (2015/02/19)
The present invention provides improved processes of preparing Fondaparinux sodium comprising converting a compound of formula ABCDE4 to Fondaparinux sodium at a reaction pH of no more than about 9.0. In some embodiments, the intermediates for the synthes
PROCESS FOR THE PRODUCTION OF FONDAPARINUX SODIUM
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Paragraph 0060; 0062; 0063, (2015/02/19)
The present invention provides novel processes for the preparation of Fondaparinux sodium by using the compound of formula ABC5 In some embodiments, the intermediates for the synthesis of Fondaparinux sodium, are also provided.
Total synthesis of anticoagulant pentasaccharide fondaparinux
Li, Tiehai,Ye, Hui,Cao, Xuefeng,Wang, Jiajia,Liu, Yonghui,Zhou, Lifei,Liu, Qiang,Wang, Wenjun,Shen, Jie,Zhao, Wei,Wang, Peng
, p. 1071 - 1080 (2014/05/20)
The anticoagulant pentasaccharide fondaparinux was synthesized using an improved and optimized synthetic strategy including a convergent [3+2] coupling approach, orthogonal protecting groups and various glycosyl donors. The new methods of glycosylation were also used for controlling the stereochemical configuration and improving the yield of the glycosylation. In addition, HPLC and NMR methods to monitor the process of total synthesis of fondaparinux were employed. This work provides a comprehensive elaboration for the synthesis and analysis of fondaparinux based on related literature, as well as abundant information for the synthesis of heparin-like oligosaccharides. A matter of protection! The anticoagulant pentasaccharide fondaparinux was synthesized using an improved and optimized synthetic strategy. The process of total synthesis was monitored by HPLC and NMR. This work will contribute to continued improvement of the multistep production of fondaparinux and provide abundant information for the synthesis of heparin-like oligosaccharides.
Synthesis, from cellobiose, of a trisaccharide closely related to the GlcNAc----GlcA----GlcN segment of the antithrombin-binding sequence of heparin.
Ichikawa,Ichikawa,Kuzuhara
, p. 273 - 282 (2007/10/02)
O-(2-Deoxy-2-sulfamido-6-O-sulfo-alpha-D-glucopyranosyl)-(1----4)- O-(beta-D- glucopyranosyluronic acid)-(1----4)-1,6-anhydro-2-deoxy-2-sulfamido-6-O-sulfo-beta-D-gl ucopyranose pentasodium salt (14) was synthesized as a heparin-related oligosaccharide. The glycosyl acceptor (derived from cellobiose) and a glycosyl donor, 6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl bromide, were coupled in the presence of mercuric bromide and molecular sieves 4A to afford a 69% yield of fully protected trisaccharide, namely, O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-alpha-D-glucopyranosyl)-(1 ----4)- O-(methyl 2,3-di-O-benzyl-beta-D-glucopyranosyluronate)-(1----4)-3-O-acetyl- 1,6-anhydro-2 - azido-2-deoxy-beta-D-glucopyranose (10), which was converted into the partially sulfated trisaccharide 14. Compound 10 also underwent acetolysis to afford the glycosyl acetate, for further elongation of the glycosyl chain.