N^α-fluoren-9-ylmethoxycarbonyl-3-O-[2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranosyl]-L-threonine | 174783-86-9

• 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: N^α-fluoren-9-ylmethoxycarbonyl-3-O-[2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranosyl]-L-threonine
• 英文别名: (2S,3R)-3-[[(2S,4aR,6S,7R,8R,8aR)-7-acetamido-2-phenyl-8-[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-2-(9H-fluoren-9-ylmethoxycarbonylamino)butanoic acid
• CAS: 174783-86-9
• 化学式: C₄₈H₅₄N₂O₁₉
• 分子量: 962.959
• InChiKey: XWMIFJVCVHMTHH-BUFXYWHASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  69
• 可旋转键数：
  21
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  265
• 氢给体数：
  3
• 氢受体数：
  19

反应信息

• 作为产物：
  描述：

  p-methylphenyl 2-deoxy-2-azido-1-thio-β-D-galactopyranoside 在 吡啶 、 4-二甲氨基吡啶 、 N-溴代丁二酰亚胺(NBS) 、 四(三苯基膦)钯 、 silver trifluoromethanesulfonate 、 四丁基三氟甲磺酸铵 、 对甲苯磺酸 、 N-甲基苯胺 、 三氟乙酸 作用下， 以 四氢呋喃 、 二氯甲烷 、 甲苯 、 乙腈 为溶剂， 反应 68.0h， 生成 N^α-fluoren-9-ylmethoxycarbonyl-3-O-[2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranosyl]-L-threonine
  参考文献：
  名称：

  源自粘蛋白和 T 细胞刺激肽的唾液酸化糖肽的化学酶法合成

  摘要：

  Tn、T、sialyl-Tn 和 2,3-sialyl-T 抗原是在上皮癌（例如影响乳腺癌、卵巢癌、胃癌和结肠癌）的粘蛋白上表达的肿瘤相关碳水化合物抗原。携带这些抗原的糖肽对开发癌症疫苗很有意义，并且有报道称其合成的短化学酶促策略。制备与 Tn (GalNAc alpha-Ser/Thr) 和 T [Gal beta(1-->3)GalNAc alpha-Ser/Thr] 抗原相对应的结构单元，这些抗原相对容易通过化学合成获得，然后使用在固相上合成糖肽。引入唾液酸得到唾液酸-Tn [Neu5Ac alpha(2-->6)GalNAc alpha-Ser/Thr] 和 2,3-唾液酸-T [Neu5Ac alpha(2-->3)Gal beta(1- -> 3)GalNAc α-Ser/Thr] 抗原在构建模块水平上进行化学处理时是困难的。因此，在从固相裂解 Tn 和 T 糖肽后，在溶液中用

  DOI：

  10.1021/ja015570t

文献信息

• Synthesis of gold nanoparticles bearing the Thomsen–Friedenreich disaccharide: a new multivalent presentation of an important tumor antigen
  作者：Sergei A. Svarovsky、Zoltan Szekely、Joseph J. Barchi

  DOI：10.1016/j.tetasy.2004.12.003

  日期：2005.1

  Herein we describe the synthesis gold nanoshells encapsulated with up to 90 units of the Thomsen-Friedenreich (TF) tumor-associated carbohydrate antigen (TACA) disaccharide (Galbeta1-3GaINAc-alpha-O-Ser/Thr) as well as the assembly of a suitably linked designer glycopeptide as a precursor to similar multivalent presentations on gold. The TF-coated nanoparticles are highly stable, water soluble, and easily handled. Improvements in the linker technology used to attach the disaccharide to the particles led to a robust multivalent platform for the presentation of this important carbohydrate. The antigen retains all recognition characteristics while displayed on this template as shown by several in vitro assays. This area of research could lead to the development of novel therapeutic agents that inhibit protein-carbohydrate interactions. Published by Elsevier Ltd.
• A concise synthesis of the O-glycosylated amino acid building block; using phenyl selenoglycoside as a glycosyl donor
  作者：Weir-Torn Jiaang、Meng-Yang Chang、Ping-Hui Tseng、Shui-Tein Chen

  DOI：10.1016/s0040-4039(00)00367-1

  日期：2000.4

  A new glycosylation methodology for synthesizing a protected TF antigen is described. The key step is to use phenyl selenoglycoside as a glycosyl donor, thereby successfully establishing O-linked Fmoc-protected threoninyl monosaccharide in an excellent yield with high alpha selectivity. From protected D-galactal, a protected TF antigen building block is obtained in 40% total yield. (C) 2000 Elsevier Science Ltd. All rights reserved.
• Facile Solid-Phase Synthesis of an Antifreeze Glycoprotein
  作者：Ping-Hui Tseng、Weir-Torn Jiaang、Meng-Yang Chang、Shui-Tein Chen

  DOI：10.1002/1521-3765(20010202)7:3<585::aid-chem585>3.3.co;2-y

  日期：2001.2.2