Synthesis of two isomeric pentasaccharides, the possible repeating unit of the beta-glucan from the micro fungus Epicoccum nigrum Ehrenb. ex Schlecht
文献类型：期刊论文
| 作者 | Zeng, Y; Zhang, WH; Ning, J; Kong, FZ |
| 刊名 | CARBOHYDRATE RESEARCH
 |
| 出版日期 | 2002 |
| 卷号 | 337期号:24页码:2383-2391 |
| 关键词 | Glucose Oligosaccharides Trichloroacetimidates Regio- And Stereoselective Synthesis |
| DOI | 10.1016/S0008-6215(02)00317-8 |
| 英文摘要 | Two isomeric pentasaccharides, beta-D-Glcp-(1 --> 3)-[beta-D-Glcp-(1 --> 6)]-beta-D-Glcp-(1 --> 3)-[beta-D-Glcp-(1 --> 6)]-beta-D-Glcp (I) and beta-D-Glcp-(1 --> 6)-beta-D-Glcp-(1 --> 3)-[beta-D-Glcp-(1 --> 3)-beta-D-Glcp-(1 --> 6)]-beta-D-Glcp (II), the possible repeating unit of the beta-glucan from the micro fungus Epicoccum nigrum Ehrenb. ex Schlecht, were synthesized as their 4-methoxyphenyl glycosides in a regio- and stereoselective manner. The pentasaccharide I was obtained from 3-O-selective glycosylation of 4-methoxyphenyl 4,6-O-benzylidene-beta-D-glucopyranoside (12) with 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranosyl-(1 --> 3)-[2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranosyl-(1 --> 6)]-2,4-di-O-acetyl-alpha-D-glucopyranosyl trichloroacetimidate (6) followed by acetylation, debenzylidenation, and 6-O-selective glucosylation with 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranosyl trichloroacetimidate (1), and then by deprotection. The pentasaccharide II was obtained from 3-O-selective coupling of 12 with 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranosyl-(1 --> 6)-2,4-di-O-acetyl-3-O-allyl-alpha-D-glucopyranosyl trichloroacetimidate (10) followed by acetylation, debenzylidenation, and 6-O-selective glycosylation with 2,3,4,6-tetra-O-benzoyl-beta-D-glucopyranosyl-(1 --> 3)-2,4,6-tri-O-acetyl-alpha-D-glucopyranosyl trichloroacetimidate (II), and finally by deprotection. (C) 2002 Elsevier Science Ltd. All rights reserved. |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
| WOS记录号 | WOS:000179688900002 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23975]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Zeng, Y,Zhang, WH,Ning, J,et al. Synthesis of two isomeric pentasaccharides, the possible repeating unit of the beta-glucan from the micro fungus Epicoccum nigrum Ehrenb. ex Schlecht[J]. CARBOHYDRATE RESEARCH,2002,337(24):2383-2391. |
| APA | Zeng, Y,Zhang, WH,Ning, J,&Kong, FZ.(2002).Synthesis of two isomeric pentasaccharides, the possible repeating unit of the beta-glucan from the micro fungus Epicoccum nigrum Ehrenb. ex Schlecht.CARBOHYDRATE RESEARCH,337(24),2383-2391. |
| MLA | Zeng, Y,et al."Synthesis of two isomeric pentasaccharides, the possible repeating unit of the beta-glucan from the micro fungus Epicoccum nigrum Ehrenb. ex Schlecht".CARBOHYDRATE RESEARCH 337.24(2002):2383-2391. |
入库方式： OAI收割
来源：生态环境研究中心
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