(1S,2R,8aR)-1,2-O-isopropylidene-1,2-dihydroxyindolizidin-5-one | 316147-52-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚里西啶
• 英文名称: (1S,2R,8aR)-1,2-O-isopropylidene-1,2-dihydroxyindolizidin-5-one
• 英文别名: (1S,2R,8aR)-(+)-1,2-di-O-isopropylidene-5-oxoindolizidine；(1S,2R,8aR)-1,2-isopropylidenedioxy-octahydro-5-indolizinone；(3aR,9aR,9bS)-2,2-dimethyl-4,7,8,9,9a,9b-hexahydro-3aH-[1,3]dioxolo[4,5-a]indolizin-6-one
• CAS: 316147-52-1
• 化学式: C₁₁H₁₇NO₃
• 分子量: 211.261
• InChiKey: URRBWZUZEIEUBR-MRTMQBJTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.91
• 拓扑面积：
  38.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (1S,2R,8aR)-1,2-O-isopropylidene-1,2-dihydroxyindolizidin-5-one 在 硼烷四氢呋喃络合物 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 15.0h， 生成 (1S,2R,8aR)-(-)-1,2-di-O-isopropylidenindolizidine
  参考文献：
  名称：

  swainsonine，7-烷基swainsonines和2,8a-dipilentiginosine通过手性杂环烯胺酯中间体的简捷和全合成

  摘要：

  从五个步骤序列中，从一个常见的手性杂环烯胺酯中间体中得出了（-）-swainsonine，（-）-7-烷基swainsonines和（-）-2,8a-dipilentiginosine的简明和不同的总合成物。手性杂环烯胺酸酯与各种α，β-不饱和羧酸酯的高效环合反应以及直接的羧基转化是合成途径的关键特征。这项工作为从容易获得的平台不同合成不同的天然和非天然多羟基吲哚并吡啶类化合物提供了一个实例。

  DOI：

  10.1016/j.tet.2008.03.080
• 作为产物：
  描述：

  (3aS,4R,6aR)-4-ethenyl-2,2-dimethyl-4,5,6,6a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyrrole 在 10percent Pd on carbon Grubbs catalyst first generation 、 氢气 、 三乙胺 作用下， 以 甲醇 、 氯仿 、 苯 为溶剂， 反应 1.0h， 生成 (1S,2R,8aR)-1,2-O-isopropylidene-1,2-dihydroxyindolizidin-5-one
  参考文献：
  名称：

  Stereoisomeric Sugar-Derived Indolizines as Versatile Building Blocks:  Synthesis of Enantiopure Di- and Tetrahydroxyindolizidines

  摘要：

  The synthesis of the sugar-derived (1S,2R,8aR)-1,2-di-O-isopropylidene-1,2,3,5,6,8a-hexahydro-5- oxoindolizine (8) and by analogy of the corresponding stereoisomers ent-8 and ent-7, an epimer at C-2 of ent-8, has been accomplished in a straightforward manner. The carbon-carbon double bond and the carbonyl functionalities on the six-membered ring make these nitrogen-containing heterocycles useful building blocks for the efficient preparation of a variety of enantiopure polyhydroxylated indolizidines of interest for their glycosidase inhibitory activity. We report here the synthesis of 2,8a-diepilentiginosine 12 from 8 and the preparation of stereoisomeric 1,2,7,8-tetrahydroxyindolizidines 9-11 performed by OsO4-catalyzed double bond syn dihydroxylation of 7 and 8, followed by deoxygenation of the amide group.

  DOI：

  10.1021/jo0016428

文献信息

• Azidomercurations of Alkenes:  Mercury-Promoted Schmidt Reactions
  作者：William H. Pearson、Daniel A. Hutta、Wen-kui Fang

  DOI：10.1021/jo001181q

  日期：2000.12.1

  the mercury-promoted Schmidt reaction has several advantages. First, the acid-promoted Schmidt reaction of azido-alkenes requires that the intermediate carbocations be tertiary, allylic, benzylic, or propargylic. The mercury-promoted method has no such limitation; thus even 1,2-disubstituted alkenes may be used. Second, the mercury-promoted method is milder, allowing the presence of acid-sensitive functionality

  当用高氯酸汞或三氟甲磺酸汞处理时，带有适当处理的烯烃的叠氮化物会生成双环亚胺离子。施密特反应的这一新形式是通过叠氮化物捕获汞离子中间体而产生的氨基重氮离子，该氨基重氮离子发生1,2移位而生成亚氨基离子（例如10-> 16-> 17- -> 18）。然后可以进行亚胺离子的还原以产生胺。与早期的质子酸促进叠氮基烯烃的分子内Schmidt反应的工作相比，汞促进的Schmidt反应具有许多优点。首先，叠氮基烯烃的酸促施密特反应要求中间碳阳离子为叔，烯丙基，苄基或炔丙基。汞促进的方法没有这种限制。因此，即使是1 可以使用2-二取代的烯烃。其次，汞促进的方法较为温和，允许存在酸敏感的官能团。通常使用三氟甲磺酸的质子形式在其官能团耐受性上受到限制。第三，尽管在酸促进的施密特反应中经常在环化/重排之前观察到碳正离子重排，但是汞促进的方法避免了这个问题。第四，在重排过程中汞基的存在可能会改变1,2-迁移的区
• Stereoisomeric Sugar-Derived Indolizines as Versatile Building Blocks:  Synthesis of Enantiopure Di- and Tetrahydroxyindolizidines
  作者：Claudio Paolucci、Lucia Mattioli

  DOI：10.1021/jo0016428

  日期：2001.7.1

  The synthesis of the sugar-derived (1S,2R,8aR)-1,2-di-O-isopropylidene-1,2,3,5,6,8a-hexahydro-5- oxoindolizine (8) and by analogy of the corresponding stereoisomers ent-8 and ent-7, an epimer at C-2 of ent-8, has been accomplished in a straightforward manner. The carbon-carbon double bond and the carbonyl functionalities on the six-membered ring make these nitrogen-containing heterocycles useful building blocks for the efficient preparation of a variety of enantiopure polyhydroxylated indolizidines of interest for their glycosidase inhibitory activity. We report here the synthesis of 2,8a-diepilentiginosine 12 from 8 and the preparation of stereoisomeric 1,2,7,8-tetrahydroxyindolizidines 9-11 performed by OsO4-catalyzed double bond syn dihydroxylation of 7 and 8, followed by deoxygenation of the amide group.
• Concise and divergent total synthesis of swainsonine, 7-alkyl swainsonines, and 2,8a-diepilentiginosine via a chiral heterocyclic enaminoester intermediate
  作者：Gao-Feng Shi、Jia-Qi Li、Xiao-Ping Jiang、Ying Cheng

  DOI：10.1016/j.tet.2008.03.080

  日期：2008.5

  The concise and divergent total syntheses of (−)-swainsonine, (−)-7-alkyl swainsonines, and (−)-2,8a-diepilentiginosine from a common chiral heterocyclic enaminoester intermediate in five-step sequences are presented. The highly efficient annulation reaction of the chiral heterocyclic enaminoester with various α,β-unsaturated carboxylates, and a straightforward carboxy inversion constituted the key

  从五个步骤序列中，从一个常见的手性杂环烯胺酯中间体中得出了（-）-swainsonine，（-）-7-烷基swainsonines和（-）-2,8a-dipilentiginosine的简明和不同的总合成物。手性杂环烯胺酸酯与各种α，β-不饱和羧酸酯的高效环合反应以及直接的羧基转化是合成途径的关键特征。这项工作为从容易获得的平台不同合成不同的天然和非天然多羟基吲哚并吡啶类化合物提供了一个实例。