8-oxo-(1,2S,4,7,7aS,8,10aR,10bS)-decahydroazepino[3,2,1-hi]indole-2-carboxylic acid methyl ester | 486421-53-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 8-oxo-(1,2S,4,7,7aS,8,10aR,10bS)-decahydroazepino[3,2,1-hi]indole-2-carboxylic acid methyl ester
• 英文别名: (2S,3₁S,7aS,10aR)-Methyl 8-oxo-1,2,3¹,4,5,6,7,7a,8,10a-decahydroazepino[3,2,1-hi]indole-2-carboxylate；methyl (2S,4R,8S,13S)-7-oxo-1-azatricyclo[6.4.1.04,13]tridec-5-ene-2-carboxylate
• CAS: 486421-53-8
• 化学式: C₁₄H₁₉NO₃
• 分子量: 249.31
• InChiKey: KBBHZLCGBNMZMS-NOHGZBONSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  8-oxo-(1,2S,4,7,7aS,8,10aR,10bS)-decahydroazepino[3,2,1-hi]indole-2-carboxylic acid methyl ester 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 Hoveyda-Grubbs catalyst second generation 咪唑 、 4-二甲氨基吡啶 、 sodium tetrahydroborate 、 cerium(III) chloride 、 LiDBB 、 偶氮二异丁腈 、 乙烯 、 N-tritylprop-2-en-1-amine 、 二甲基氯化铝 、 L-Selectride 、 对甲苯磺酸 、 N,N-二异丙基乙胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 、 六甲基磷酰三胺 、 二氯甲烷 、 水 、 乙腈 、 xylene 为溶剂， 反应 118.75h， 生成 (1R,3S,9R,10R,11S,14S,15S,16R)-10-ethenyl-14-methyl-3-[(2S,4S)-4-methyl-5-oxooxolan-2-yl]-12-oxa-4-azatetracyclo[7.6.1.04,16.011,15]hexadecan-13-one
  参考文献：
  名称：

  (-)-块茎黄酮碱的全合成

  摘要：

  复杂的五环百合生物碱晚香茅碱的首次全合成是在 24 个步骤中完成的，从氢吲哚中间体以 1.4% 的总产率完成，该中间体很容易从 Cbz-l-酪氨酸通过三个步骤获得。应用了一种创新的合成策略，将氨基酸前体的单个立体中心传递到目标分子的十个立体碳中的九个中。合成方法的亮点之一是钌催化的 3 倍使用，首先在 azepine 闭环复分解中，然后在烯烃异构化中，然后是交叉复分解丙烯 - 乙烯基交换，以及立体选择性连接通过使用锂化原酸酯将γ-丁内酯部分连接到核心四环。

  DOI：

  10.1021/ja028603t
• 作为产物：
  描述：

  (2S,3aR,7aR)-3a-hydroxy-6-oxo-2,3,3a,6,7,7a-hexahydroindole-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester 在 甲酸 吡啶 、 咪唑 、 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 三乙基硅烷 、 4-二甲氨基吡啶 、 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、 sodium tetrahydroborate 、 Wilkinson's catalyst 、 cerium(III) chloride 、 四丙基高钌酸铵 、 四丁基氟化铵 、 氢气 、 palladium diacetate 、 双(三甲基硅烷基)氨基钾 、 potassium carbonate 、 N-甲基吗啉氧化物 、 三乙胺 、 三苄基膦 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 二氯甲烷 、 甲苯 为溶剂， -90.0~60.0 ℃ 、101.33 kPa 条件下， 反应 125.08h， 生成 8-oxo-(1,2S,4,7,7aS,8,10aR,10bS)-decahydroazepino[3,2,1-hi]indole-2-carboxylic acid methyl ester
  参考文献：
  名称：

  Asymmetric Total Syntheses of Tuberostemonine, Didehydrotuberostemonine, and 13-Epituberostemonine

  摘要：

  Detailed experimental approaches toward the pentacyclic Stemona alkaloids tuberostemonine and didehydrotuberostemonine and the close analogue 13-epituberostemonine are described. The syntheses originate with a hydroindolinone derivative that can be obtained on a large scale in a single step from carbobenzoxy-protected L-tyrosine. Highlights of the conversion of this hydroindolinone to the target structures are the three-fold use of ruthenium catalysts, first in azepine ring-closing metathesis and then in alkene isomerization and cross-metathesis propenyl-vinyl exchange, as well as the stereoselective attachment of a y-butyrolactone ring to a tetracycle core structure by use of a lithiated asymmetric bicyclo[3.2.1]octane (ABO) ortho ester. Structural analysis by density functional theory (DFT) methods revealed that the ease of oxidation of the natural product is likely due to the conformational preferences of the pyrrolidine and the fused cyclohexane rings.

  DOI：

  10.1021/ja044280k

文献信息

• Total Synthesis of (−)-Tuberostemonine
  作者：Peter Wipf、Stacey R. Rector、Hidenori Takahashi

  DOI：10.1021/ja028603t

  日期：2002.12.1

  in 1.4% overall yield from a hydroindole intermediate which is readily obtained in three steps from Cbz-l-tyrosine. An innovative synthetic strategy was applied that relays the single stereocenter of the amino acid precursor into nine of the ten stereogenic carbons of the target molecule. Among the highlights of the synthetic methodology are the 3-fold use of ruthenium catalysis, first in an azepine

  复杂的五环百合生物碱晚香茅碱的首次全合成是在 24 个步骤中完成的，从氢吲哚中间体以 1.4% 的总产率完成，该中间体很容易从 Cbz-l-酪氨酸通过三个步骤获得。应用了一种创新的合成策略，将氨基酸前体的单个立体中心传递到目标分子的十个立体碳中的九个中。合成方法的亮点之一是钌催化的 3 倍使用，首先在 azepine 闭环复分解中，然后在烯烃异构化中，然后是交叉复分解丙烯 - 乙烯基交换，以及立体选择性连接通过使用锂化原酸酯将γ-丁内酯部分连接到核心四环。
• Influence of Base and Structure in the Reversible Covalent Conjugate Addition of Thiol to Polycyclic Enone Scaffolds
  作者：Christopher J. Rosenker、Elizabeth H. Krenske、K. N. Houk、Peter Wipf

  DOI：10.1021/ol400094k

  日期：2013.3.1

  The energetics of thiol addition and elimination reactions to bicyclic enones derived from an indole core structure were explored using H-1 NMR and density functional theory (DFT) calculations. The agreement between experiment and theory is excellent, and the combined results reveal that even minor changes in the conformation of the enone, substituents on the scaffold, and the use of different bases have a signficant influence on product distribution. A potential application of these principles is in the rational design of new reversible covalent enzyme inhibitors.
• Asymmetric Total Syntheses of Tuberostemonine, Didehydrotuberostemonine, and 13-Epituberostemonine
  作者：Peter Wipf、Stacey R. Spencer

  DOI：10.1021/ja044280k

  日期：2005.1.1

  Detailed experimental approaches toward the pentacyclic Stemona alkaloids tuberostemonine and didehydrotuberostemonine and the close analogue 13-epituberostemonine are described. The syntheses originate with a hydroindolinone derivative that can be obtained on a large scale in a single step from carbobenzoxy-protected L-tyrosine. Highlights of the conversion of this hydroindolinone to the target structures are the three-fold use of ruthenium catalysts, first in azepine ring-closing metathesis and then in alkene isomerization and cross-metathesis propenyl-vinyl exchange, as well as the stereoselective attachment of a y-butyrolactone ring to a tetracycle core structure by use of a lithiated asymmetric bicyclo[3.2.1]octane (ABO) ortho ester. Structural analysis by density functional theory (DFT) methods revealed that the ease of oxidation of the natural product is likely due to the conformational preferences of the pyrrolidine and the fused cyclohexane rings.