enokipodin A | 306951-07-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: enokipodin A
• 英文别名: (1R,9R)-1,5,12,12-tetramethyl-8-oxatricyclo[7.2.1.02,7]dodeca-2(7),3,5-triene-4,9-diol
• CAS: 306951-07-5
• 化学式: C₁₅H₂₀O₃
• 分子量: 248.322
• InChiKey: KANVQRLDTGOSBL-HUUCEWRRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  18
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  49.7
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  enokipodin A 以 氯仿 为溶剂， 生成 enokipodin B
  参考文献：
  名称：

  Highly oxidized cuparene-type sesquiterpenes from a mycelial culture of Flammulina velutipes

  摘要：

  Cuparene-type sesquiterpenes were isolated from a culture broth of Flammulina velutipes (Curt.:Fr.) Sing. Using spectroscopic methods (HR-MS,H-1 and C-13 NMR, and 2D NMR, spectroscopy), their structures were determined to be 2,3,4,5-tetrahydro-2,7-dihydroxy-5,8,10,10-tetramethyl-2,5-methano-1-benzoxepin and 5-methyl-2-(3-oxo-1,2,2-trimethylcyclopentyl)benzoquinone. Both showed antimicrobial activity against Cladosporium herbarum and Bacillus subtilis. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0031-9422(00)00189-8
• 作为产物：
  描述：

  (4R)-4-(2,5-dimethoxy-4-methylphenyl)-4,5,5-trimethyl-2-cyclopentenone 在 palladium on activated charcoal sodium dithionite 、 ammonium cerium(IV) nitrate 、 氢气 作用下， 以 乙醇 、 水 、 乙酸乙酯 、 乙腈 为溶剂， 反应 17.0h， 生成 enokipodin A
  参考文献：
  名称：

  对映体全合成的enokipodins AD，蘑菇，金针菇产生的抗菌倍半萜。

  摘要：

  （2,5-二甲氧基-4-甲基苯基）乙酸甲酯的总收率为8-28％，首次完成了对烯基足蛋白A，B，C和D的对映选择性全合成，这是一种具有抗微生物活性的高度氧化的α-cuparenone型倍半萜。通过应用Meyers的非对映选择性烷基化方案构建其C7-季不对称中心。本合成法证实了烯基鬼臼肽的绝对构型，并且还构成了（S）-1，4-异丙基二醇和（S）-Cuparene-1，4-醌的形式对映选择性合成。

  DOI：

  10.1271/bbb.69.374

文献信息

• Enantioselective palladium catalyzed conjugate additions of ortho-substituted arylboronic acids to β,β-disubstituted cyclic enones: total synthesis of herbertenediol, enokipodin A and enokipodin B
  作者：Jeffrey Buter、Renée Moezelaar、Adriaan J. Minnaard

  DOI：10.1039/c4ob01085j

  日期：——

  Palladium catalyzed asymmetric conjugate addition of ortho-substituted arylboronic acids to cyclic enones and its application in natural product synthesis.

  钯催化的手性共轭加成，将邻位取代的芳基硼酸加到环状烯酮上，并在天然产物合成中的应用。
• Palladium (II) catalyzed 5-endo epoxynitrile cyclizations: total syntheses of enokipodins A and B
  作者：Jesús Armando Luján-Montelongo、José G. Ávila-Zárraga

  DOI：10.1016/j.tetlet.2010.02.072

  日期：2010.4

  New total syntheses of the cuparenic sesquiterpenes enokipodins A and B were accomplished. The key step involves a novel, cationic-controlled and palladium (II) improved, 5-endo cyclization of an α-aryl-δ-epoxynitrile. The cyclization occurs with unmatched regioselectivity and high stereoselectivity. The synthesis is completed in 5 steps achieving yields of 50% for enokipodin A and 55% for enokipodin

  合成了新的全合成的伞形倍半萜烯烯配体A和B。的关键步骤涉及一种新颖的，阳离子控制和钯（II）改善，5-内切α-芳基δ-epoxynitrile的环化。环化反应具有无与伦比的区域选择性和高立体选择性。合成过程分5个步骤完成，对于enokipodin A，产率为50％，对于enokipodin B，产率为55％。
• Enantioselective Total Synthesis of Enokipodins A–D, Antimicrobial Sesquiterpenes Produced by the Mushroom, <i>Flammulina velutipes</i>
  作者：Mana SAITO、Shigefumi KUWAHARA

  DOI：10.1271/bbb.69.374

  日期：2005.1.1

  first enantioselective total synthesis of enokipodins A, B, C and D, highly oxidized alpha-cuparenone-type sesquiterpenoids possessing antimicrobial activity, was accomplished in 8-28% overall yields from methyl (2,5-dimethoxy-4-methylphenyl)acetate by applying Meyers' diastereoselective alkylation protocol for the construction of their C7-quaternary asymmetric center. The present synthesis confirmed

  （2,5-二甲氧基-4-甲基苯基）乙酸甲酯的总收率为8-28％，首次完成了对烯基足蛋白A，B，C和D的对映选择性全合成，这是一种具有抗微生物活性的高度氧化的α-cuparenone型倍半萜。通过应用Meyers的非对映选择性烷基化方案构建其C7-季不对称中心。本合成法证实了烯基鬼臼肽的绝对构型，并且还构成了（S）-1，4-异丙基二醇和（S）-Cuparene-1，4-醌的形式对映选择性合成。
• Enantioselective total synthesis of enokipodins A–D
  作者：Shigefumi Kuwahara、Mana Saito

  DOI：10.1016/j.tetlet.2004.04.191

  日期：2004.6

  The first enantioselective total synthesis of enokipodins A–D, highly oxidized α-cuparenone-type sesquiterpenoids with antimicrobial activity, was accomplished by using Meyers' diastereoselective alkylation protocol for the construction of the C7-quaternary asymmetric center. The present synthesis also constitutes a formal enantioselective synthesis of (S)-1,4-cuparenediol and (S)-cuparene-1,4-quinone

  利用Meyers的非对映选择性烷基化方案构建C7季不对称中心，完成了首个对映体全合成的烯基鬼臼草碱A–D，高度氧化的具有抗微生物活性的α-cuparenone型倍半萜。本合成也构成（正式对映选择性合成小号）-1,4- cuparenediol和（小号）-cuparene-1,4-醌。
• Srikrishna; Rao, M. Srinivasa, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2010, vol. 49, # 10, p. 1363 - 1371
  作者：Srikrishna、Rao, M. Srinivasa

  DOI：——

  日期：——