2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-D-glucopyranosyl trichloroacetimidate | 143394-76-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: 2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-D-glucopyranosyl trichloroacetimidate
• 英文别名: methyl (2S,4aR,7R,8S,8aR)-7,8-dibenzoyloxy-2-methyl-6-(2,2,2-trichloroethanimidoyl)oxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxine-2-carboxylate
• CAS: 143394-76-7
• 化学式: C₂₆H₂₄Cl₃NO₁₀
• 分子量: 616.836
• InChiKey: MAUBBSNYSGCEIL-YHYNUDKUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  40
• 可旋转键数：
  10
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  140
• 氢给体数：
  1
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-D-glucopyranosyl trichloroacetimidate 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 三氟甲磺酸三甲基硅酯 、 3 A molecular sieve 、 sodium methylate 作用下， 以 甲醇 、 乙醚 、 二氯甲烷 为溶剂， 反应 30.0h， 生成
  参考文献：
  名称：

  与鸟分枝杆菌胞内血清型8和21的物种特异性糖肽脂质有关的5-氨基戊基单糖至三糖半抗原的合成

  摘要：

  描述了含丙酮酸缩醛的5-氨基戊基单糖，二糖和三糖片段的制备，所述片段与鸟分枝杆菌细胞内物种特异性糖肽脂质的血清型8和21有关。通过将适当保护的4,6-O-[（S）-1-甲氧基羰基亚乙基] -D-吡喃葡萄糖基三氯乙酰亚胺酸酯6和7依次偶联至Z-保护的5-氨基戊醇来构建糖，从而得到血清素21单糖片段9解除封锁后；然后将其与2-O-苯甲酰基-4-O-苄基-1-硫代α-L-鼠李糖吡喃糖苷（18），分别得到相应的乙基1-硫代二糖21和23。随后N-碘代琥珀酰亚胺促进的后者与Z-保护的5-氨基戊醇的偶联，然后将产物解封，分别得到相应的二糖片段26（血清素8）和27（血清素21）。用Z保护的5，氨基戊基3,4-二-O-苄基-6-脱氧-α-L-塔洛吡喃糖苷（28）缩合21，然后解封所得的三糖，得到血清素8片段5-氨基戊基O-（ 4,6-O-[（S）-1-羧亚乙基] -3-O-甲基-β-D-吡喃葡萄糖基）-（1->

  DOI：

  10.1016/0008-6215(94)80062-6
• 作为产物：
  描述：

  benzyl 2,3-di-O-benzoyl-4,6-O-<(S)-1-(methoxycarbonyl)ethylidene>-α-D-glucopyranoside 在 palladium on activated charcoal 氢气 、 potassium carbonate 作用下， 以 二氯甲烷 、 溶剂黄146 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 反应 48.0h， 生成 2,3-di-O-benzoyl-4,6-O-(1-methoxycarbonylethylidene)-D-glucopyranosyl trichloroacetimidate
  参考文献：
  名称：

  Ziegler, Thomas; Eckhardt, Elisabeth; Herold, Gerhard, Liebigs Annalen der Chemie, 1992, # 5, p. 441 - 452

  摘要：

  DOI：

文献信息

• Synthetic studies toward pyruvate acetal containing saccharides. Synthesis of the carbohydrate part of the Mycobacterium smegmatis pentasaccharide glycolipid and fragments thereof for the preparation of neoantigens
  作者：Thomas Ziegler、Elisabeth Eckhardt、Veronique Birault

  DOI：10.1021/jo00057a021

  日期：1993.2

  A series of 2,3-di-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-D-glucopyranosyl donors (beta-phenylthio 3, bromide 4, alpha-chloride 5, beta-fluoride 6, and trichloroacetimidate 7) were prepared from the corresponding alpha-allyl glucoside 1 via the deallylated glucose 2 and were tested in glycosylation reactions with methanol to give the pyruvylated methyl glucosides 8 and 9 and with methyl 2,4,6-tri-O-benzoyl-beta-D-glucopyranoside 10 to give the disaccharide 11. Best results with respect to yield and beta-selectivity of the coupling were achieved with imidate 7. Thus, the 2-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-3-O-methyl-D-glucopyranosyl trichloroacetimidate 14 was prepared from its benzyl glucoside 12 and used for the synthesis of fragments related to the Mycobacterium smegmatis lipopentasaccharide. Trimethylsilyl trifluoromethanesulfonate-mediated condensation of 14, 5-[(benzyloxycarbonyl)amino]pentanol, and 10, respectively, followed by deblocking of the products 15 and 17 gave the pyruvylated aminopentyl glucoside 16 and methyl laminaribioside 18. Treatment of 17 with dichloromethyl methyl ether gave the laminaribiosyl chloride 19, coupling of which with protected 5-aminopentanol gave 20 also obtained from 14 and the monosaccharide nucleophile 26. The trisaccharide 5-aminopentyl glycoside fragment 42 was prepared by first coupling of 14 and benzyl 2-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-alpha-D-glucopyranoside 30 that was converted to the bispyruvylated laminaribiose imidate 33, followed by condensation with thioglycoside 38 obtainable in four steps from 1,2,4,6-tetra-O-acetyl-3-O-benzyl-beta-D-glucopyranose to give the trisaccharide ethyl thioglycoside 40. Next, NIS-mediated condensation of 40 and 5-[(benzyloxycarbonyl)amino]pentanol followed by deblocking gave 42. Pentasaccharide 45 was similarly prepared from 40 and hepta-O-benzoyltrehalose 43 to give first the blocked saccharide 44, deblocking of which afforded the target pentasaccharide.
• Ziegler, Thomas, Angewandte Chemie, 1992, vol. 104, # 10, p. 1369 - 1371
  作者：Ziegler, Thomas

  DOI：——

  日期：——
• Ziegler, Thomas; Eckhardt, Elisabeth; Herold, Gerhard, Liebigs Annalen der Chemie, 1992, # 5, p. 441 - 452
  作者：Ziegler, Thomas、Eckhardt, Elisabeth、Herold, Gerhard

  DOI：——

  日期：——
• Synthesis of 5-aminopentyl mono- to tri-saccharide haptens related to the species-specific glycopeptidolipids of Mycobacterium avium-intracellulare serovars 8 and 21
  作者：Thomas Ziegler

  DOI：10.1016/0008-6215(94)80062-6

  日期：1994.2

  The preparation of pyruvate acetal-containing 5-aminopentyl mono-, di-, and tri-saccharide fragments related to serovars 8 and 21 of the species-specific glycopeptidolipid of Mycobacterium avium-intracellulare is described. The saccharides were constructed by sequential coupling of the suitably protected 4,6-O-[(S)-1-methoxycarbonylethylidene]-D-glucopyranosyl trichloroacetimidates 6 and 7 to Z-protected

  描述了含丙酮酸缩醛的5-氨基戊基单糖，二糖和三糖片段的制备，所述片段与鸟分枝杆菌细胞内物种特异性糖肽脂质的血清型8和21有关。通过将适当保护的4,6-O-[（S）-1-甲氧基羰基亚乙基] -D-吡喃葡萄糖基三氯乙酰亚胺酸酯6和7依次偶联至Z-保护的5-氨基戊醇来构建糖，从而得到血清素21单糖片段9解除封锁后；然后将其与2-O-苯甲酰基-4-O-苄基-1-硫代α-L-鼠李糖吡喃糖苷（18），分别得到相应的乙基1-硫代二糖21和23。随后N-碘代琥珀酰亚胺促进的后者与Z-保护的5-氨基戊醇的偶联，然后将产物解封，分别得到相应的二糖片段26（血清素8）和27（血清素21）。用Z保护的5，氨基戊基3,4-二-O-苄基-6-脱氧-α-L-塔洛吡喃糖苷（28）缩合21，然后解封所得的三糖，得到血清素8片段5-氨基戊基O-（ 4,6-O-[（S）-1-羧亚乙基] -3-O-甲基-β-D-吡喃葡萄糖基）-（1->