O-(3,4,6-tri-O-acetyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranosyl)trichloroacetimidate | 216876-46-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: O-(3,4,6-tri-O-acetyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranosyl)trichloroacetimidate
• 英文别名: [(2R,3S,4R,5R,6S)-3,4-diacetyloxy-5-(3,4-dimethyl-2,5-dioxopyrrol-1-yl)-6-(2,2,2-trichloroethanimidoyl)oxyoxan-2-yl]methyl acetate
• CAS: 216876-46-9
• 化学式: C₂₀H₂₃Cl₃N₂O₁₀
• 分子量: 557.769
• InChiKey: ZETKXHLSGYZRDX-DWJZYCCASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  35
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  159
• 氢给体数：
  1
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  O-(3,4,6-tri-O-acetyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranosyl)trichloroacetimidate 在 吡啶 、 三氟甲磺酸 、 硼烷-三甲胺络合物 、 4 A molecular sieve 、 三氟化硼乙醚 、 四丁基氟化铵 、 sodium methylate 、 对甲苯磺酸 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 环己烷 、 乙酸乙酯 、 乙腈 为溶剂， 反应 10.5h， 生成 methyl 3-O-acetyl-6-O-benzyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranosyl-(1->4)-3-O-acetyl-6-O-benzyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of a Fragment of Bacterial Cell Wall

  摘要：

  Cell wall is indispensable for survival of bacteria. This large molecular "mesh" encases the entire cytoplasm of bacteria, and it is comprised of repeating backbone units of N-acetyl-glucosamine (NAG)-N-acetyl-muramic acid (NAM). A pentapeptide is attached to each of the lactyl units of the N-acetyl-muramic acid. The cell wall has both cross-linked and non-cross-linked components. In the present paper, we have devised a synthetic route for the preparation of a fragment of the cell wall comprised of a tetrasaccharide (NAG-NAM-NAG-NAM), along with the two appended peptides. We also report the syntheses of three glycosyl donors (compounds 5, 7, and 9) and three glycosyl acceptors (compounds 4, 6, and 8) based on the D-glucosamine structure as a building unit. The synthetic strategy that is disclosed is generally useful in construction of other natural products containing the D-glucosamine as a building block.

  DOI：

  10.1021/jo035583k
• 作为产物：
  描述：

  Acetic acid (3R,4R,5S,6R)-2,5-diacetoxy-6-acetoxymethyl-3-(3,4-dimethyl-2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-tetrahydro-pyran-4-yl ester 在 乙酸肼 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 反应 2.0h， 生成 O-(3,4,6-tri-O-acetyl-2-deoxy-2-dimethylmaleimido-β-D-glucopyranosyl)trichloroacetimidate
  参考文献：
  名称：

  Synthesis of a Fragment of Bacterial Cell Wall

  摘要：

  Cell wall is indispensable for survival of bacteria. This large molecular "mesh" encases the entire cytoplasm of bacteria, and it is comprised of repeating backbone units of N-acetyl-glucosamine (NAG)-N-acetyl-muramic acid (NAM). A pentapeptide is attached to each of the lactyl units of the N-acetyl-muramic acid. The cell wall has both cross-linked and non-cross-linked components. In the present paper, we have devised a synthetic route for the preparation of a fragment of the cell wall comprised of a tetrasaccharide (NAG-NAM-NAG-NAM), along with the two appended peptides. We also report the syntheses of three glycosyl donors (compounds 5, 7, and 9) and three glycosyl acceptors (compounds 4, 6, and 8) based on the D-glucosamine structure as a building unit. The synthetic strategy that is disclosed is generally useful in construction of other natural products containing the D-glucosamine as a building block.

  DOI：

  10.1021/jo035583k

文献信息

• NOVEL COMPOSITIONS AND THERAPEUTIC METHODS
  申请人：AyuVis Research LLC

  公开号：US20170281667A1

  公开（公告）日：2017-10-05

  The present invention is directed to novel products, variants, pharmaceutically acceptable salts and prodrugs thereof, and medical use of such compounds for the treatment and/or management of sepsis, septicemia, septic shock, ocular infection, ocular inflammation, ocular angiogenesis, rheumatoid arthritis (RA), atherosclerosis, inflammatory bowel diseases (IBD), asthma, chronic obstructive pulmonary disease, fever syndromes, cachexia, psoriasis, autoimmune diseases, cardiac diseases, retinoblastoma, cancer and/or any disorder associated with inflammation, immunomodulation and microbial infection.

  本发明涉及新产品、变体、药用可接受的盐和前药，以及这些化合物的医学用途，用于治疗和/或管理败血症、败血症、脓毒性休克、眼部感染、眼部炎症、眼部血管生成、类风湿性关节炎（RA）、动脉粥样硬化、炎症性肠病（IBD）、哮喘、慢性阻塞性肺病、发热综合征、消瘦症、牛皮癣、自身免疫疾病、心脏疾病、视网膜母细胞瘤、癌症和/或任何与炎症、免疫调节和微生物感染有关的疾病。
• Glucosamine-glycerophospholipids That Activate Cell-Matrix Adhesion and Migration
  作者：Thilo Bartolmäs、Tabea Heyn、Michael Mickeleit、Annette Fischer、Werner Reutter、Kerstin Danker

  DOI：10.1021/jm050558n

  日期：2005.10.1

  Two new analogues derived from the platelet activating factor (PAF), containing glucosamine instead of the acetyl group, were synthesized, and their effect on the human keratinocyte cell line HaCaT was evaluated with respect to cytotoxicity, proliferation, adhesion, and migration. Starting with (R)-1,2-isopropylideneglycerol (3), the glycosylation acceptor 1-O-octadecyl-3-O-tert-butyldimethylsilyl-sn-glycerol (6) was synthesized in three steps. Glycosylation of 6 with the already known O-(3,4,6-tri-O-acetyl-2-deoxy-2-dimethylmaleimido-beta-D-glycopyranosyl)trichloracetimidate gave 1-O-octadecyl-2-O-(3',4',6'-tri-O-acetyl-2'-deoxy-2'-dimethylmaleimido-beta-D-glucopyranosyl)-3-O-tert-butyldimethylsilyl-sn-glycerol (7). After removing the (tert-butyldimethyl)silyl (TBDMS) group with FeCl3 center dot 6H(2)O, phosphoryl choline was introduced, yielding [1-O-octadecyl-2-O-(2'-deoxy-2'-dimethylmaleimido-beta-D-glucopyranosyl)-sn-glycero(3)]phosphorylcholine (2) (glucosimide-PAF). pH controlled cleavage of the amino protection group gave [1-O-octadecyl-2-O-(2'-deoxy-2'-amino-beta-D-glucopyranosyl)-sn-glycero(3)]phosphorylcholine hydrochloride (1) (glucosamine-PAF). 2 inhibited proliferation of HaCaT cells by 26% at nontoxic concentrations, while 1 increased the proliferation rate by 30% at low concentrations. At higher concentrations, both compounds showed cytotoxic properties with LD50 = 30 mu mol/L (1) and LD50 = 5-6 mu mol/L (2). Both 1 and 2 were potent promoters of cell adhesion and migration of HaCaT cells.
• Synthesis of Glycosylthiols and Reactivity Studies
  作者：Ravindra T. Dere、Amit Kumar、Vipin Kumar、Xiangming Zhu、Richard R. Schmidt

  DOI：10.1021/jo200624e

  日期：2011.9.16

  The acid-catalyzed reaction of 1,2-anhydro-3,4,6-tri-O-benzyl-alpha-D-glucopyranose (7) as glycosyl donor with bis-trimethylsilyl sulfide as acceptor affords the alpha-thiol. Hence, this sterically hindered S-nucleophile as acceptor should provide with O-glycosyl trichloroacetimidates as glycosyl donors that have nonparticipating groups at C-2, glycosylthiols with the thiol group in axial position. This was confirmed for various donors (4, 16-19) with the exception of the corresponding mannosyl donor (20). However, powerful participating groups at C-2 of the donor (23-28) governed the anomeric selectivity.