allyl 2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside | 540474-09-7

• 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: allyl 2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside
• 英文别名: [(2R,4aR,6R,7R,8S,8aS)-8-hydroxy-2-phenyl-6-prop-2-enoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl] benzoate
• CAS: 540474-09-7
• 化学式: C₂₃H₂₄O₇
• 分子量: 412.439
• InChiKey: RLGYZWLDRWPCEL-LCLYZWHDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  30
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  83.4
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  allyl 2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside 在 tetrafluoroboric acid 、 三氟甲磺酸三甲基硅酯 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 4.0h， 生成 allyl 3-O-acetyl-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis, (1→3)-β-d-glucanase-binding ability and phytoalexin-elicitor activity of (R)-2,3-epoxypropyl (1→3)-β-d-pentaglucoside

  摘要：

  The (1-->3)-beta-D-pentaglucoside was synthesized as its (R)-2,3-epoxypropyl glycoside via 2 + 3 strategy. The disaccharide donor 8 was obtained by 3-selective coupling of 2 with 4, followed by deallylation, and trichloroacetimidation. Meanwhile, the trisaccharide acceptor 12 was prepared by coupling of 10 with 4, followed by deacetylation. Condensation of 8 with 12, followed by epoxidation, and deprotection, gave the target pentaoside. The results of these bioassays demonstrated that the (1-->3)-beta-D-glucanase was obviously inactivated by 15 with k(app) = 3.79 x 10(-4) min(-1). At the same time, we found that the 15 was more active as compared to the laminaripentaose in eliciting phytoalexin accumulation in tobacco cotyledon tissue, and it could be kept longer time than laminaripentaose, which indicated it is much more stable than laminaripentaose. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2004.09.076
• 作为产物：
  描述：

  苯甲酰氯 、 2-PROPENYL4,6-O-BENZYLIDENE-Α-D-GLUCOPYRANOSIDE2-丙烯基4,6-O-亚苄基-Α-D-吡喃葡萄糖苷 在 吡啶 作用下， 以75%的产率得到allyl 2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of (R)-2,3-epoxypropyl(1→3)-β-d-pentaglucoside

  摘要：

  The title pentasaccharide was synthesized via a 2 + 3 strategy. The disaccharide donor, 3-O-acetyl-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranosyl-(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-alpha-D-glucopyranosyI trichloroacetimidate (8), was obtained by selective coupling of allyl 2-O-benzoyl-4,6-O-benzylidene-alpha-D-glucopyranoside with 3-O-acetyl-2-O-benzoyl-4,6-O-benzylidene-alpha-D-glueopyranosyl trichloroacetimidate (4), followed by deallylation, and trichloroacetimidation. Meanwhile, the trisaccharide acceptor, allyl 2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranosyl-(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyrallosyl(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranoside (12), was prepared by coupling of allyl 2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranosyl-(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranoside with 4, followed by deacetylation. Condensation of 8 with 12, followed by epoxidation, and deprotection, gave the target pentaoside. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2005.01.015

文献信息

• A Siloxane-Bridged Glycosyl Donor Enables Highly Stereoselective β-Xylulofuranosylation
  作者：Bo-Shun Huang、Todd L. Lowary

  DOI：10.1021/acs.joc.0c01008

  日期：2020.12.18

  We report a siloxane-protected donor (7) for the highly stereoselective formation of β-(2,3-cis)-xylulofuranosyl bonds. Glycosylation reactions with 7 gave >80% yields, and only β-xylulofuranosides were isolated in all cases. The utility of 7 for the synthesis of complex glycans was shown by its successful application to the preparation of the repeating unit from the lipopolysaccharide O-antigen of

  我们报告了硅氧烷保护的供体（7）的β-（2,3-顺式）-xylulofuranosyl键的高度立体选择性形成。7种糖基化反应的收率> 80％，在所有情况下仅分离出β-木氟呋喃糖苷。的效用7为复合聚糖的合成所示的成功应用从脂多糖O-抗原制备的重复单元的至小肠结肠炎耶尔森菌血清型○：5 / O：5,27。该结构是具有两个β-木酮呋喃糖残基的五糖。使用7，同时引入了具有出色的立体声控制功能。
• Regioselective Benzoylation of 6-O-Protected and 4,6-O-Diprotected Hexopyranosides as Promoted by Chiral and Achiral Ditertiary 1,2-Diamines
  作者：Guixian Hu、Andrea Vasella

  DOI：10.1002/hlca.200290018

  日期：2002.12

  Monobenzoylation of triols (6-O-silylated glycopyranosides) or diols (4,6-O-benzylidenated glycopyranosides) with benzoyl chloride and triethylamine at −60° to 23° is promoted by catalytic amounts of ditertiary 1,2-diamines. The regioselectivity depends mostly on the structure of the alcohols; it is modulated by the configuration and constitution of the diamines, as shown by comparing the effect of Oriyama's

  三醇（6- Monobenzoylation ö -silylated glycopyranosides）或二醇（4,6- ö在-60℃至23 -benzylidenated glycopyranosides）与苯甲酰氯和三乙胺°通过催化量的二叔1,2-二胺的促进。区域选择性主要取决于醇的结构。通过比较Oriyama催化剂（（S）-1和（R）-1），N，N，N ′，N′-四甲基乙二胺（TMEDA ）的作用可以看出，它受二胺的构型和组成的调节。），N，N，N'，N'-四乙基乙二胺（TEEDA），Et 3 N和EtNMe 2。催化剂的空间位阻会削弱其对反应性的影响。与在Oriyama催化剂存在下外消旋-环己烷-1,2-二醇的单和二苯甲酰基化的适度对映选择性相一致，这些二胺对区域选择性的影响相当有限。尽管与过程简单相关，但是在某些情况下，这些催化剂比单一方法可产生更高的单种苯甲酸酯收率。在制备3-
• Synthesis of Laminarin Fragments and Evaluation of a β-(1,3) Glucan Hexasaccaride-CRM₁₉₇Conjugate as Vaccine Candidate against<i>Candida albicans</i>
  作者：Roberto Adamo、Marta Tontini、Giulia Brogioni、Maria Rosaria Romano、Gabriele Costantini、Elisa Danieli、Daniela Proietti、Francesco Berti、Paolo Costantino

  DOI：10.1080/07328303.2011.604453

  日期：2011.5

  Laminarin-CRM197 glycoconjugates were previously demonstrated to be immunogenic and confer protection against Candida albicans in mice. Laminarin consists of β-(1,3) glucan repeating units, with sporadic β-(1,6) branches. A set of short glucans was used to study the effect of the β-(1,6) branch on the antigenicity of linear β-(1,3) glucans. A linear β-(1,3) glucan hexasaccharide was selected as the

  先前证明层粘连蛋白-CRM197糖缀合物具有免疫原性，并赋予小鼠抗白色念珠菌的保护作用。层粘连蛋白由β-（1,3）葡聚糖重复单元组成，具有零星的β-（1,6）分支。使用一组短葡聚糖来研究β-（1,6）支链对线性β-（1,3）葡聚糖的抗原性的影响。选择线性β-（1,3）葡聚糖六糖作为能够抑制层粘连蛋白和抗层粘连蛋白抗体结合的最佳片段。然后将六聚体偶联到CRM197上，并在小鼠中诱导显着滴度的特异性抗laminarin抗体，与Lam-CRM197偶联物产生的抗体相当。
• Synthesis, (1→3)-β-d-glucanase-binding ability and phytoalexin-elicitor activity of (R)-2,3-epoxypropyl (1→3)-β-d-pentaglucoside
  作者：Gang-Liang Huang、Xin-Ya Mei、Man-Xi Liu、Tian-Cai Liu

  DOI：10.1016/j.bmcl.2004.09.076

  日期：2004.12

  The (1-->3)-beta-D-pentaglucoside was synthesized as its (R)-2,3-epoxypropyl glycoside via 2 + 3 strategy. The disaccharide donor 8 was obtained by 3-selective coupling of 2 with 4, followed by deallylation, and trichloroacetimidation. Meanwhile, the trisaccharide acceptor 12 was prepared by coupling of 10 with 4, followed by deacetylation. Condensation of 8 with 12, followed by epoxidation, and deprotection, gave the target pentaoside. The results of these bioassays demonstrated that the (1-->3)-beta-D-glucanase was obviously inactivated by 15 with k(app) = 3.79 x 10(-4) min(-1). At the same time, we found that the 15 was more active as compared to the laminaripentaose in eliciting phytoalexin accumulation in tobacco cotyledon tissue, and it could be kept longer time than laminaripentaose, which indicated it is much more stable than laminaripentaose. (C) 2004 Elsevier Ltd. All rights reserved.
• Synthesis of (R)-2,3-epoxypropyl(1→3)-β-d-pentaglucoside
  作者：Gang-Liang Huang、Xin-Ya Mei、Man-Xi Liu

  DOI：10.1016/j.carres.2005.01.015

  日期：2005.3

  The title pentasaccharide was synthesized via a 2 + 3 strategy. The disaccharide donor, 3-O-acetyl-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranosyl-(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-alpha-D-glucopyranosyI trichloroacetimidate (8), was obtained by selective coupling of allyl 2-O-benzoyl-4,6-O-benzylidene-alpha-D-glucopyranoside with 3-O-acetyl-2-O-benzoyl-4,6-O-benzylidene-alpha-D-glueopyranosyl trichloroacetimidate (4), followed by deallylation, and trichloroacetimidation. Meanwhile, the trisaccharide acceptor, allyl 2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranosyl-(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyrallosyl(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranoside (12), was prepared by coupling of allyl 2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranosyl-(1 -> 3)-2-O-benzoyl-4,6-O-benzylidene-beta-D-glucopyranoside with 4, followed by deacetylation. Condensation of 8 with 12, followed by epoxidation, and deprotection, gave the target pentaoside. (c) 2005 Elsevier Ltd. All rights reserved.