isopropyl 1-thio-α-L-rhamnopyranoside | 946499-64-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: isopropyl 1-thio-α-L-rhamnopyranoside
• 英文别名: (2S,3R,4R,5R,6S)-2-methyl-6-propan-2-ylsulfanyloxane-3,4,5-triol
• CAS: 946499-64-5
• 化学式: C₉H₁₈O₄S
• 分子量: 222.306
• InChiKey: XFFLZPIRZAJGMY-ABXGFROZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  95.2
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  isopropyl 1-thio-α-L-rhamnopyranoside 在 吡啶 、 N-碘代丁二酰亚胺 、 三氟甲磺酸三甲基硅酯 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 反应 3.17h， 生成 cleistetroside-2
  参考文献：
  名称：

  Facile synthesis of cleistetroside-2, a partially acetylated oligorhamnoside from Cleistopholis glauca and patens

  摘要：

  A tetrasaccharide, dodecanyl 4-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 3)-2,4-di-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 3)-4-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 4)-alpha-L-rhamnopyranoside (cleistetroside-2), was synthesized via '2+2' convergent strategy. Sequential regioselective 3-O-glycosylation of isopropyl 1-thio-alpha-L-rhamnopyranoside (4) with 4-O-acetyl-2,3-O-isopropylidene-alpha-L-rhamnopyranosyl trichloroacetimidate (8), and isopropyl 4-O-acetyl-2,3-O-isopropylidene-alpha-L-rhamnopyranosyl-(1 -> 3)-2,4-di-O-acetyl-alpha-L-1-thio-rh amnopyranoside (10) with dodecanyl 4-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 4)-2,3-O-isopropylidene-alpha-L-rharnnopyranoside (12), greatly facilitate the target availability. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2007.05.019
• 作为产物：
  描述：

  1,2,3,4-O-tetraacetyl-α-L-rhamnopyranose 在 三氟化硼乙醚 、 sodium methylate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 3.0h， 生成 isopropyl 1-thio-α-L-rhamnopyranoside
  参考文献：
  名称：

  Facile synthesis of cleistetroside-2, a partially acetylated oligorhamnoside from Cleistopholis glauca and patens

  摘要：

  A tetrasaccharide, dodecanyl 4-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 3)-2,4-di-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 3)-4-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 4)-alpha-L-rhamnopyranoside (cleistetroside-2), was synthesized via '2+2' convergent strategy. Sequential regioselective 3-O-glycosylation of isopropyl 1-thio-alpha-L-rhamnopyranoside (4) with 4-O-acetyl-2,3-O-isopropylidene-alpha-L-rhamnopyranosyl trichloroacetimidate (8), and isopropyl 4-O-acetyl-2,3-O-isopropylidene-alpha-L-rhamnopyranosyl-(1 -> 3)-2,4-di-O-acetyl-alpha-L-1-thio-rh amnopyranoside (10) with dodecanyl 4-O-acetyl-alpha-L-rhamnopyranosyl-(1 -> 4)-2,3-O-isopropylidene-alpha-L-rharnnopyranoside (12), greatly facilitate the target availability. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2007.05.019

文献信息

• One-Pot Relay Glycosylation
  作者：Xiong Xiao、Jing Zeng、Jing Fang、Jiuchang Sun、Ting Li、Zejin Song、Lei Cai、Qian Wan

  DOI：10.1021/jacs.0c00447

  日期：2020.3.25

  A novel one-pot relay glycosylation has been established. The protocol is characterized by the construction of two glycosidic bonds with only one equivalent of triflic anhydride. This method capitalizes on the in situ generated cyclic-thiosulfonium ion as the relay activator, which directly activates the newly formed thioglycoside in one-pot. A wide range of substrates are well-accommodated to furnish

  已经建立了一种新型的一锅接力糖基化。该协议的特点是仅用一当量的三氟甲磺酸酐构建两个糖苷键。该方法利用原位生成的环硫锍离子作为中继激活剂，直接在一锅法中激活新形成的硫糖苷。广泛的底物适用于提供线性和支化寡糖。该方法的合成效用和优势已通过快速获得天然存在的苯乙酮糖苷 kankanoside F 和树脂糖苷 merremoside D 得到证明。
• Total synthesis of tricolorin A <i>via</i> interrupted Pummerer reaction-mediated glycosylation and one-pot relay glycosylation
  作者：Jiuchang Sun、Jing Fang、Xiong Xiao、Lei Cai、Xiang Zhao、Jing Zeng、Qian Wan

  DOI：10.1039/d0ob00513d

  日期：——

  Tricolorin A, a bioactive resin glycoside, was synthesized stepwise or in one pot based on interrupted Pummerer reaction-mediated (IPRm) glycosylation. The stepwise synthesis adopted a [2 + 2] assembly sequence, and all of the glycosidic bonds were constructed efficiently by IPRm glycosylation. The one-pot synthesis employed our recently developed one-pot relay glycosylation strategy, in which two

  基于中断的Pummerer反应介导的（IPRm）糖基化反应，逐步或在一个罐中合成了Tricolorin A（一种生物活性树脂糖苷）。逐步合成采用[2 + 2]组装顺序，并通过IPRm糖基化有效地构建了所有糖苷键。一锅合成使用我们最近开发的一锅中继糖基化策略，其中两个不同的糖苷键仅与一个当量的外部活化剂顺序连接。