3,4,6-tri-O-acetyl-2-deoxy-2-(3,4,5,6-tetra-chlorophthalimido)-β-D-glucospyranosyl chloride | 528841-17-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异吲哚及其衍生物
• 英文名称: 3,4,6-tri-O-acetyl-2-deoxy-2-(3,4,5,6-tetra-chlorophthalimido)-β-D-glucospyranosyl chloride
• 英文别名: 3,4,6-tri-O-acetyl-2-deoxy-2-tetrachlorophthalimido-β-D-glucopyranosyl chloride；[(2R,3S,4R,5R,6S)-3,4-diacetyloxy-6-chloro-5-(4,5,6,7-tetrachloro-1,3-dioxoisoindol-2-yl)oxan-2-yl]methyl acetate
• CAS: 528841-17-0
• 化学式: C₂₀H₁₆Cl₅NO₉
• 分子量: 591.613
• InChiKey: JZGKRGPAFLXWLW-HHACZPCISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  35
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  126
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  3,4,6-tri-O-acetyl-2-deoxy-2-(3,4,5,6-tetra-chlorophthalimido)-β-D-glucospyranosyl chloride 在 silver trifluoromethanesulfonate 、 一水合肼 、 三乙胺 作用下， 以 甲醇 、 乙醚 、 乙醇 、 二氯甲烷 为溶剂， 反应 25.0h， 生成 diosgenyl 2-acetamido-2-deoxy-β-D-glucospyranoside
  参考文献：
  名称：

  Synthesis and induction of apoptosis in B cell chronic leukemia by diosgenyl 2-amino-2-deoxy-β-d-glucopyranoside hydrochloride and its derivatives

  摘要：

  2-Acetamido-2-deoxy-D-glucose hydrochloride (D-glucosamine hydrochloride) has been used for the preparation of 1,3.4.6-tetra- O-acetyl-2-deoxy-2-trifluoroacetqamido-beta- (4) and 2-tetrachlorophthalimido-alpha, beta-D-glucopyranose (6) which have been transformed into the appropriate bromides and the chloride. Both bromo and chloro sugars were used as a glycosyl donors for the glycosylation of diosgenin [(25R)-spirost-5-en-3beta-ol]. These condensations were conducted under mild conditions, using silver triflate as a promoter, and gave diosgenyl glycosides 9 and 12. Each of them was converted into diosgenyl 2-amino-2-deoxy-beta-D-glucopyranoside hydrochloride (11) and N-acylamido derivatives. The structures of all new glycosides were established by H-1 and C-13 NMR spectroscopy. These diosgenyl glycosides are the first saponins containing the D-glucosamine residue that have been synthesized. These compounds show promising antitumor activities, The synthetic saponins increase the number of apoptotic B cells, in combination with cladribine (2-CdA). that are isolated from chronic lymphotic leukemia (B-CLL) patients. (C) 2002 Published by Elsevier Science Lid.

  DOI：

  10.1016/s0008-6215(02)00407-x
• 作为产物：
  描述：

  四氯苯二甲酸酐 在 吡啶 、 1,1-二氯甲醚 、 三氟化硼乙醚 、 sodium methylate 作用下， 以 甲醇 、 氯仿 为溶剂， 生成 3,4,6-tri-O-acetyl-2-deoxy-2-(3,4,5,6-tetra-chlorophthalimido)-β-D-glucospyranosyl chloride
  参考文献：
  名称：

  Differently N-protected 3,4,6-tri-O-acetyl-2-amino-2-deoxy-d-glucopyranosyl chlorides and their application in the synthesis of diosgenyl 2-amino-2-deoxy-β-d-glucopyranoside

  摘要：

  Four differently N-protected 3,4,6-tri-O-acetyl-2-amino-2-deoxy-D-glucopyranosyl chlorides were synthesized and used as glycosyl donors in reactions with diosgenin. The following amine group protections were tested: trifluoroacetyl (TFA), 2,2,2-trichloroethoxycarbonyl (Troc), phthaloyl (Phth), and tetrachlorophthaloyl (TCP). Products of glycosylation were deprotected to yield diosgenyl 2-amino-2-deoxy-beta-D-glucopyranoside. The efficiency of the procedures is discussed. Additionally, a single-crystal X-ray diffraction analysis for 3,4,6-tri-O-acetyl-2-deoxy-2-tetrachlorophthalimido-beta-D-glucopyranosyl chloride is reported. Orientations of the pyranose substituents as well as the planarity of the acetoxy and phthalimide groups in the crystal lattice are discussed. Structural evidence is presented for a mesomeric effect in both groups. The preference of the cis over trans orientation of the acetoxy group is confirmed in the crystal lattice. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2012.11.020