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低分子硫酸皮肤素的结构确定
引用本文:谢继青,姬胜利,王凤山,曹吉超.低分子硫酸皮肤素的结构确定[J].解放军药学学报,2007,23(3):194-197.
作者姓名:谢继青  姬胜利  王凤山  曹吉超
作者单位:山东大学药学院,生化与生物技术药物研究院,山东,济南,250012;济南军区总医院,药剂科,山东,济南,250031
摘    要:目的 确定制备的平均相对分子量分别为8 000D、5 200 D和4 000D左右低分子硫酸皮肤素(LMWDS1、LMWDS2和LMWDS3)的结构.方法 采用紫外(UV)、红外(IR)及核磁共振(13C-NMR、1H-NMR)图谱分析.结果 LMWDS1还含有部分降解的-(1→3)-2-乙酰氨基-2-脱氧-4-O-硫酸-β-O-半乳糖;LMWDS2、LMWDS3中(1→4)-O-α-L-艾杜糖醛酸-(1→3)-2-乙酰氨基-2-脱氧-4-O-硫酸-β-O-半乳糖和(1→4)-2-O-硫酸-α-L-艾杜糖醛酸-(1→3)-2-乙酰氨基-2-脱氧-6-O-硫酸-β-O-半乳糖含量降低,而(1→4)-2-O-硫酸-α-L-艾杜糖醛酸-(1→3)-2-乙酰氨基-2-脱氧4-O-硫酸-β-O-半乳糖的含量明显升高,从而导致了LMWDS分子中硫酸根/羧酸根的比值升高.结论 各LMWDS中均含有DS的主体双糖部分,随着降解程度的增加,双糖单位上某些取代基上的基团会发生变化.

关 键 词:硫酸皮肤素  低分子硫酸皮肤素  结构确定
文章编号:1008-9926(2007)03-0194-04
修稿时间:2006-12-122007-02-25

Studies on the Structural Identification of Low Molecular Weight Dermatan Sulfate
XIE Ji-Qing,JI Sheng-Li,WANG Feng-Shan,CAO Ji-Chao.Studies on the Structural Identification of Low Molecular Weight Dermatan Sulfate[J].Pharmaceutical Journal of Chinese People's Liberation Army,2007,23(3):194-197.
Authors:XIE Ji-Qing  JI Sheng-Li  WANG Feng-Shan  CAO Ji-Chao
Institution:1. Institute of Biochemical and Biotechnological Drugs, School of Pharmacy, Shandong University, Jinan 250012,Shandong China;2.Department of Pharmaceuticals, PLA Jinan Military General Hospital, Jinan 250031, Shandong China
Abstract:Aim To identify the structures of low molecular weight Dermatan sulfate (LMWDSs). Methods According to the spectra of UV, IR, ^13 C-NMR and ^1H-NMR of all kinds of LMWDSs. Results The spectra proved the disaccharide unit structure of DS to be (1-4) -O-α-idopyranosyluronic acid- ( 1-3 ) -O-2-acetamido-2 - deoxy-4-O- sulfate-β-O-galattopyranosyl, as was the case with the natural one. The spectra also showed that with the decrease of molecular weight, the content of the above disacccharide unit in LMWDS decreased, but the content of (14) -2-O- sulfate-α dopyranosyluronic acid-( 1-3 )-O-2-acetamido-2-deoxy-4-O-sulfate-β-O-galattopyranosyl increased,pushing the ratio of SO3/C00. Conclusion Each of the LMWDSs took the disaccharide unit as the main part of the structure. As the molecular weight of LMWDSs decreased, the content of some disaccharide unit changed.
Keywords:Dermatan sulfate  Low molecular weight dermatan sulfate  Structure identification
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