CN105524126B - 艾杜糖衍生物的制备方法 - Google Patents

艾杜糖衍生物的制备方法 Download PDF

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CN105524126B
CN105524126B CN201410510977.8A CN201410510977A CN105524126B CN 105524126 B CN105524126 B CN 105524126B CN 201410510977 A CN201410510977 A CN 201410510977A CN 105524126 B CN105524126 B CN 105524126B
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CN105524126A (zh
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王文君
曹学峰
吕晴晴
李冬梅
叶辉
闫续
李睿
朱兴华
冯鹏
王鹏
沈杰
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Accendatech Co Ltd
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Abstract

本发明提供了艾杜糖衍生物的制备方法,具体涉及以式(Ⅰ)化合物为原料制备艾杜糖衍生物的方法,该方法比传统方法中路线短,成本低,适合工业化生产,艾杜糖衍生物可以用于合成糖胺聚糖类中间体、原料药及其相关制剂。

Description

艾杜糖衍生物的制备方法
技术领域
本发明涉及药物合成领域,具体地说涉及一种艾杜糖衍生物的制备方法,艾杜糖衍生物主要用于合成糖胺聚糖类中间体、原料药及其相关制剂。
背景技术
艾杜糖衍生物是生产糖胺聚糖类药物(如抗凝血药物磺达肝癸钠(fondaparinux,商品名安卓 ARIXTRA)过程中使用的重要中间体。
这类化合物主要的合成路线有以下方法: [a) H. G. Bazin, R. J. Kerns, R.J. Linhardt, Tetrahedron Lett. 1997, 38, 923-926; b) T. Chiba, P. Sinaÿ,Carbohydr. Research 1986, 151, 379-389; c) O. Gavard, Y. Hersant, J. Alais,V. Duverger, A. Dilhas, A. Bascou, D. Bonnaffe, Eur. J. Org. Chem. 2003,3603-3620; d) S. U. Hansen, M. Baráth, B. A. B. Salameh, R. G. Pritchard, W.T. Stimpson, J. M. Gardiner, G. C. Jayson, Org. Lett. 2009, 11, 4528-4531; e)H. Hinou, H. Kurosawa, K. Matsuoka, D. Terunuma, H. Kuzuhara, Tetrahedron Lett.1999, 40, 1501-1504; f) G. J. S. Lohman, D. K. Hunt, J. A. Hogermeier,P. H. Seeberger, J. Org. Chem. 2003, 68, 7559-7561; g) A. Lubineau, O.Gavard, J. Alais, D. Bonnaffe, Tetrahedron Lett. 2000, 41, 307-311; hL.RochepeauJobron, J. C. Jacquinet, Carbohydr. Res. 1997, 303, 395-406; i) P.Schell, H. A. Orgueira, S. Roehrig, P. H. Seeberger, Tetrahedr. Lett. 2001,42, 3811-3814; j) H. N. Yu, J.-i. Furukawa, T. Ikeda, C.-H. Wong, Org. Lett. 2004, 6, 723-726.],及,SN2 构型翻转类[[2] a) N. Barroca, J.-C. Jacquinet,Carbohydr. Res. 2000, 329, 667-679; b) J. D. C. Codee, B. Stubba, M.Schiattarella, H. S. Overkleeft, C. A. A. van Boeckel, J. H. van Boom, G. A.van der Marel, J. Am. Chem. Soc. 2005, 127, 3767-3773; c) J.-C. Jacquinet, M.Petitou, P. Duchaussoy, I. Lederman, J. Choay, G. Torri, P. Sinaÿ, Carbohydr Res. 1984, 130, 221-241; d) W. Ke, D. M. Whitfield, M. Gill, S. Larocque, S.H. Yu, Tetrahedron Lett. 2003, 44, 7767-7770; e) R. Ojeda, J. L. de Paz, H.Martin-Lomas, J. M. Lassaletta, Synlett 1999, 1316-1318; f) H. A. Orgueira,A. Bartolozzi, P. Schell, R. E. J. N. Litjens, E. R. Palmacci, P. H.Seeberger, Chem.-Eur. J. 2003, 9, 140-169; g) J. Tatai, G. Osztrovszky, M.Kajtar-Peredy, P. Fugedi, Carbohydr. Res. 2008, 343, 596-606; h) I. R. Vlahov, R. J. Linhardt, Tetrahedron Lett. 1995, 36, 8379-8382.]。
但上述制备艾杜糖衍生物的方法均存在反应路线长、反应条件剧烈、收率低等缺陷,不易于工业化。
本发明提供了一种比传统合成路线短、成本低、适合工业化生产的制备艾杜糖衍生物的方法,以用于合成糖胺聚糖类中间体、原料药及其相关制剂。
发明内容
本发明提供一种艾杜糖衍生物的制备方法,解决了现有生产过程中存在的反应过程步骤过长、整体收率过低等问题。
本发明提供了一种式(Ⅰ)所示的化合物,其结构如下:
(Ⅰ)
其中R1为甲基,乙基,甲氧基,乙氧基,异丙基,叔丁基,异丙氧基,叔丁氧基;R2为甲基,乙基,异丙基,叔丁基,但不为氢;Ar为苯基,1-萘基,2-萘基。
式(Ⅰ)所示的化合物用于制备艾杜糖衍生物的方法,具体步骤包括:(Ⅰ)化合物在适当溶剂中,适当碱的存在下,一定反应温度下,异构化得到艾杜糖衍生物;
其中R1为甲基,乙基,甲氧基,乙氧基,异丙基,叔丁基,异丙氧基,叔丁氧基;R2为甲基,乙基,异丙基,叔丁基,但不为氢;Ar为苯基,1-萘基,2-萘基。
根据上述所述的步骤,其步骤的特征在于:适当溶剂为水、吡啶、甲醇、乙醇、叔丁醇、二甲亚砜、N,N二甲基甲酰胺、二氯甲烷、甲苯、二甲苯、氯苯、二氧六环或四氢呋喃及上述溶剂的混合溶剂;碱为三乙胺、氢氧化钠、氢氧化钾、氢氧化锂、甲醇钠、乙醇钠或叔丁醇钾;一定反应温度为–10 ℃~60 ℃。
技术效果
本发明的优点在于:
一、本发明合成路线步骤短,收率高。在这个过程中,减少了大量的废液废水的排放,降低了大量的生产成本。二、所有反应条件温和适于工业化大生产。
具体实施方式
为了理解本发明,下面以实施例进一步说明本发明的有益效果,应该理解为这些实施例仅用于例证的目的,不限制本发明,同时本领域普通技术人员根据本发明所做的显而易见的改变和修饰也包含在本发明范围之内。
实施例:对甲基2-O-苯甲酰基-3-O-苄基-1-巯基-α-L-艾杜吡喃醛酸甲酯的合成
1 2
将化合物1(2 g,4.94 mmol,1.0 equiv.)和甲醇钠(266 mg,4.94 mmol,1.0 eq)加入单口烧瓶中,氮气保护下加入重蒸的无水甲醇4 ml,25 ℃搅拌4小时,加入醋酸淬灭反应,将溶液旋干,柱层析得白色固体1.50 g,即得艾到化合物2收率75.0 %。
1H NMR (400 MHz, CDCl3): δ 7.42-7.37 (m, 7 H, ArH), 7.09 (d, 2 H, J =8.0 Hz, ArH), 5.49 (s, 1 H, H-1), 5.23 (d, 1 H, J = 1.2 Hz, H-5), 4.68 (d, 1H, J = 12.0 Hz, PhCH2-), 4.52 (d, 1 H, J = 11.6 Hz, PhCH2-), 4.08 (t, 1 H, J =1.2 Hz, H-4), 4.04 (t, 1 H, J = 1.2 Hz, H-2), 3.71 (s, 4 H, H-3, -CO2CH3),3.52 (br, 2 H, -OH), 2.23 (s, 3 H, PhCH3); 13C NMR (100 MHz, CDCl3): δ 170.7,137.4, 132.5, 131.5, 129.8, 128.5, 128.0, 127.7, 89.8, 74.5, 72.4, 68.9,68.7, 68.5, 52.5, 21.1; HRMS (ESI): calcd for [M+NH4]+ m/z 422.1637, found422.1634.

Claims (1)

1.一种制备艾杜糖衍生物的制备方法,其特征为以化合物(Ⅰ)为原料,在无水甲醇溶剂中,甲醇钠作为碱,25℃搅拌4h的条件下,化合物(Ⅰ)异构化为艾杜糖衍生物,
其中R1为甲基,R2为甲基,Ar为苯环。
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WO2009098449A1 (en) * 2008-02-04 2009-08-13 The University Of Manchester Production of l-iduronate containing polysaccharides
CN103665054A (zh) * 2013-11-26 2014-03-26 中国农业大学 异乳糖的制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009098449A1 (en) * 2008-02-04 2009-08-13 The University Of Manchester Production of l-iduronate containing polysaccharides
CN103665054A (zh) * 2013-11-26 2014-03-26 中国农业大学 异乳糖的制备方法

Non-Patent Citations (4)

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Biosynthesis of heparin/heparan sulphate : mechanism of epimerization of glucuronyl C-5;Hagner Mcwhirter A等;《Biochem. J.》;20001231;第347卷;第69-75页 *
L-艾杜糖醛酸的合成,机理探讨及其在璜达肝葵钠全合成中的应用;曹学峰;《中国化学会第29届学术年会摘要集--第22分会:化学生物学》;20140804;第1页 *
Strict Stereocontrol by 2,4-O-Di-tert-butylsilylene Group on β-Glucuronylations;Takayuki Furukawa等;《Organic Letters》;20120403;第14卷(第8期);第2102-2105页 *
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