benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-stearoylamino-β-D-glucopyranosyl)-2-deoxy-α-D-glucopyranoside | 141989-30-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-stearoylamino-β-D-glucopyranosyl)-2-deoxy-α-D-glucopyranoside
• 英文别名: N-[(2S,3R,4R,5S,6R)-2-[(2R,3S,4R,5R,6S)-5-acetamido-6-phenylmethoxy-2-(phenylmethoxymethyl)-4-prop-2-enoxyoxan-3-yl]oxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-3-yl]octadecanamide
• CAS: 141989-30-2
• 化学式: C₇₀H₉₄N₂O₁₁
• 分子量: 1139.52
• InChiKey: NPUXOZXFLOEMDA-YNHXJYEJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  13.46
• 重原子数：
  83.0
• 可旋转键数：
  40.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.51
• 拓扑面积：
  141.27
• 氢给体数：
  2.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-stearoylamino-β-D-glucopyranosyl)-2-deoxy-α-D-glucopyranoside 在 Wilkinson's catalyst 、 甲酸 、 sodium hydride 作用下， 以 乙醇 、 甲苯 为溶剂， 反应 15.0h， 生成 benzyl 2-acetamido-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-stearoylamino-β-D-glucopyranosyl)-2-deoxy-3-O-carboxymethyl-α-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of O-(2-Deoxy-2-stearoylamino-β-D-glucopyranosyl)-(1→4)-N-acetylnormuramoyl-L-α-aminobutanoyl-D-isoglutamine, a Lipophilic Disaccharide Analogue of MDP

  摘要：

  用氢氧化钡部分去乙酰化化合物II，得到苯甲醇2-乙酰氨基-3-O-烯丙基-4-O-(2-氨基-2-脱氧-4,6-O-异丙基-β-D-葡萄糖吡喃糖基)-6-O-苯甲醇-2-脱氧-α-D-葡萄糖吡喃糖苷(III)，产率高。在DCC存在下，化合物III被N酰化为硬脂酸酯，得到苯甲醇2-乙酰氨基-6-O-苯甲醇-3-O-羧甲基-2-脱氧-4-O-(3,4,6-三-O-苯甲醇-2-硬脂酰氨基-β-D-葡萄糖吡喃糖基)-α-D-葡萄糖吡喃糖苷(VII)。将化合物VII与L-α-氨基丁酰-D-异谷氨酸苯甲酯偶联，随后氢解产物VIII得到化合物IX。

  DOI：

  10.1135/cccc19920579
• 作为产物：
  描述：

  benzyl 2-acetamido-3-O-allyl-4-O-(2-amino-2-deoxy-4,6-O-isopropylidene-β-D-glucopyranosyl)-6-O-benzyl-2-deoxy-α-D-glucopyranoside 在 barium dihydroxide 、 溶剂黄146 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 生成 benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-stearoylamino-β-D-glucopyranosyl)-2-deoxy-α-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of O-(2-Deoxy-2-stearoylamino-β-D-glucopyranosyl)-(1→4)-N-acetylnormuramoyl-L-α-aminobutanoyl-D-isoglutamine, a Lipophilic Disaccharide Analogue of MDP

  摘要：

  用氢氧化钡部分去乙酰化化合物II，得到苯甲醇2-乙酰氨基-3-O-烯丙基-4-O-(2-氨基-2-脱氧-4,6-O-异丙基-β-D-葡萄糖吡喃糖基)-6-O-苯甲醇-2-脱氧-α-D-葡萄糖吡喃糖苷(III)，产率高。在DCC存在下，化合物III被N酰化为硬脂酸酯，得到苯甲醇2-乙酰氨基-6-O-苯甲醇-3-O-羧甲基-2-脱氧-4-O-(3,4,6-三-O-苯甲醇-2-硬脂酰氨基-β-D-葡萄糖吡喃糖基)-α-D-葡萄糖吡喃糖苷(VII)。将化合物VII与L-α-氨基丁酰-D-异谷氨酸苯甲酯偶联，随后氢解产物VIII得到化合物IX。

  DOI：

  10.1135/cccc19920579

文献信息

• New Effective Synthesis of (N-Acetyl- and N-Stearoyl-2-amino-2-deoxy-β-D-glucopyranosyl)-(1→4)-N-acetylnormuramoyl-L-2-aminobutanoyl-D-isoglutamine, Analogs of GMDP with Immunopotentiating Activity
  作者：Miroslav Ledvina、Daniel Zyka、Jan Ježek、Tomáš Trnka、David Šaman

  DOI：10.1135/cccc19980577

  日期：——

  Ethyl 3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside (5), prepared by benzylation of ethyl 2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside (4), was transformed by reaction with bromine into 3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide (6). Thioglycoside 5 in the presence of methyl triflate and glycosylbromide 6 in the presence of silver triflate were used as glycosyl donors for condensation with benzyl 2-acetamido-3-O-allyl-6-O-benzyl-2-deoxy-α-D-glucopyranoside (7), to give benzyl 2-acetamido-3-O-allyl-6-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-2-deoxy-α-D-glucopyranoside (8). Its reductive dephthaloylation with NaBH₄/AcOH afforded benzyl 2-acetamido-3-O-allyl-4-O-(2-amino-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)- 6-O-benzyl-2-deoxy-α-D-glucopyranoside (11). Compound 11 was N-acylated to give benzyl 2-acetamido-4-O-(2-acylamino-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)-3-O-allyl-6-O-benzyl-2-deoxy-α-D-glucopyranosides (12a) or (12b). These compounds were converted into corresponding benzyl 2-acetamido-4-O-(2-acylamino-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)-6-O-benzyl-3-O-carboxymethyl-2-deoxy-α-D-glucopyranosides which, by condensation with H-L-Abu-D-isoGln(OBzl) followed by hydrogenolysis of protective benzyl groups, furnished glycopeptides 16a and 16b. Intramolecular O→N migration of the allyl protecting group followed by its reduction to the propyl residue by reaction of compound 8 with hydrazine or hydrazinium acetate, to give benzyl 2-acetamido-4-O-(3,4,6-tri-O-benzyl-2-deoxy-2-propylamino-β-D-glucopyranosyl)-6-O-benzyl-2-deoxy-α-D-glucopyranoside (9), is also described.

  通过对乙酰氨基-3-O-丙烯基-6-O-苄基-2-去氧-α-D-葡萄糖吡喃苷（7）的缩合反应，利用硫酸银盐催化的硫醚苷5和硫醚苷溴化物6在甲基三氟甲烷和溴化糖基6的存在下作为糖基供体，得到苄基-2-乙酰氨基-3-O-丙烯基-6-O-苄基-4-O-(3,4,6-三-O-苄基-2-去氧-2-邻苯二甲酰基-β-D-葡萄糖吡喃苷)-2-去氧-α-D-葡萄糖吡喃苷（8）。将其还原去邻苯二甲酰基，使用NaBH₄/醋酸作用得到苄基-2-乙酰氨基-3-O-丙烯基-4-O-(2-氨基-3,4,6-三-O-苄基-2-去氧-β-D-葡萄糖吡喃苷)-6-O-苄基-2-去氧-α-D-葡萄糖吡喃苷（11）。化合物11被N-酰化，得到苄基-2-乙酰氨基-4-O-(2-酰胺基-3,4,6-三-O-苄基-2-去氧-β-D-葡萄糖吡喃苷)-3-O-丙烯基-6-O-苄基-2-去氧-α-D-葡萄糖吡喃苷（12a）或（12b）。这些化合物被转化为相应的苄基-2-乙酰氨基-4-O-(2-酰胺基-3,4,6-三-O-苄基-2-去氧-β-D-葡萄糖吡喃苷)-6-O-苄基-3-O-羧甲基-2-去氧-α-D-葡萄糖吡喃苷，通过与H-L-Abu-D-isoGln(OBzl)缩合，接着氢解保护性苄基基团，得到糖肽16a和16b。描述了化合物8通过烷基保护基的内分子O→N迁移，随后与叠氮或叠氮醋酸盐反应还原为丙基残基，得到苄基-2-乙酰氨基-4-O-(3,4,6-三-O-苄基-2-去氧-2-丙基氨基-β-D-葡萄糖吡喃苷)-6-O-苄基-2-去氧-α-D-葡萄糖吡喃苷（9）。