cryptopleurine | 482-21-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 菲及其衍生物
• 英文名称: cryptopleurine
• 英文别名: Cryptopleurin；rac-cryptopleurine；(±)-Cryptopleurine；2,3,6-trimethoxy-11,12,13,14,14a,15-hexahydro-9H-phenanthro[9,10-b]quinolizine
• CAS: 482-21-3
• 化学式: C₂₄H₂₇NO₃
• 分子量: 377.483
• InChiKey: RSHYSOGXGSUUIJ-UHFFFAOYSA-N

物化性质

• 沸点：
  553.9±45.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)
• 熔点：
  197-198 °C

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  28
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  30.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  11,12,13,14,14a,15-hexahydro2,3,6-trimethoxy-9H-phenanthro<9,10-b>quinolizin-15-ol 在 三乙基硅烷 作用下， 以 三氟乙酸 为溶剂， 反应 10.0h， 以96%的产率得到cryptopleurine
  参考文献：
  名称：

  Highly efficient synthesis of phenanthroquinolizidine alkaloids via Parham-type cycliacylation

  摘要：

  A concise and efficient route involving Parham-type cycliacylation as the key step has been used to synthesize phenanthroquinolizidine alkaloids 1a-c and 2a-c. Among the products, 1b-(S), 1b-(R), 2a-(14S,15S), 2a-(14aR,15R), and 2b were synthesized for the first time. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2009.12.135

文献信息

• A General Cp*Co^III-Catalyzed Intramolecular C−H Activation Approach for the Efficient Total Syntheses of Aromathecin, Protoberberine, and Tylophora Alkaloids
  作者：Andreas Lerchen、Tobias Knecht、Maximilian Koy、Constantin G. Daniliuc、Frank Glorius

  DOI：10.1002/chem.201702648

  日期：2017.9.7

  Herein, we report a Cp*CoIII‐catalyzed C−H activation approach as the key step to create highly valuable isoquinolones and pyridones as building blocks that can readily be applied in the total syntheses of a variety of aromathecin, protoberberine, and tylophora alkaloids. This particular C−H activation/annulation reaction was achieved with several terminal as well as internal alkyne coupling partners

  在此，我们报告Cp * Co III催化的C H活化方法是创建高度有价值的异喹诺酮和吡啶酮的重要步骤，这些异喹啉酮和吡啶酮可以轻松地用于各种芳香族素，原小ber碱和tylophora生物碱的总合成。这种特殊的CH活化/环化反应是通过多个末端以及内部炔烃偶联伙伴实现的，具有广泛的应用范围和出色的官能团耐受性。本文报道的该方案的合成适用性已在两个Topo-I-抑制剂和两个8-氧代小ber碱核心的合成中得到了证明，这些核心可进一步制成四氢小ber碱和原小ber碱生物碱。此外，这些构件也以方便的方式转化为六种不同的tylophora生物碱。
• Total Synthesis of Phenanthropiperidine Alkaloids by Sequential Alkylation of <i>N</i> , <i>N</i> ‐Dibenzylaminoacetonitrile
  作者：Christelle Bouvry、Milène Franzetti、Jean‐François Cupif、Jean‐Pierre Hurvois

  DOI：10.1002/ejoc.202101131

  日期：2021.11.25

  Tylophorine and cryptopleurine were synthesized by condensation of metallated α-aminonitriles with bromomethylphenanthrenes to provide fully substituted α-aminonitriles, which are subjected to a reductive decyanation to form homobenzylic amines. From these intermediates, the E- and D-rings of tylophorine and cryptopleurine were formed through the displacement of a terminal leaving group and by a late

  Tylophorine 和 cryptopleurine 是通过金属化的 α-氨基腈与溴甲基菲缩合得到完全取代的 α-氨基腈合成的，然后进行还原脱氰以形成高苄胺。从这些中间体中，分别通过末端离去基团的置换和晚期 Pictet-Spengler 缩合形成 tylophorine 和 cryptopleurine 的 E 和 D 环。
• Directed ortho metallation of tertiary aromatic amides
  作者：M. Iwao、K.K. Mahalanabis、M. Watanabe、S.O. De Silva、V. Snieckus

  DOI：10.1016/s0040-4020(01)91913-1

  日期：1983.1

  cryptopleurine (8) and antofine (9) via directed ortho metallation of the common phenanthrene (1) are described (Scheme 2). The utility of this strategy as a new N-heteroring annelation method (Scheme 1) is illustrated by the preparation of other aromatic ring-fused quinolizidine (12,15) and indolizidine (18,21) systems. A Mg for Li transmetallation, crucial for the synthesis of 13 and of potential broader

  描述了通过普通菲（1）的定向邻位金属化反应合成菲咯啉-喹唑烷和-吲哚唑烷生物碱，隐藻碱（8）和antofine（9）（方案2）。此策略为新的N-杂环成环方法（所述的实用方案1）由其他芳族环稠合的喹嗪啶（制备图示12,15）和吲哚里（18，21）的系统。报道了一种用于Li过渡金属化的Mg，它对于13的合成至关重要，并且在定向金属化化学中具有潜在的更广泛的意义。
• Total Syntheses of the Tylophora Alkaloids Cryptopleurine, (−)-Antofine, (−)-Tylophorine, and (−)-Ficuseptine C
  作者：Alois Fürstner、Jason W. J. Kennedy

  DOI：10.1002/chem.200600592

  日期：2006.9.25

  sensitive and multidrug resistant cancer cell lines. The advantages of the chosen route are illustrated by the total syntheses of the phenanthroquinolizidine cryptopleurine (1) and the phenanthroindolizidines (-)-antofine (2), (-)-tylophorine (3), and their only recently isolated congener (-)-ficuseptine C (4). The key steps consist in a Suzuki cross-coupling between a (commercial) boronic acid and a

  描述了一种简单，有效和模块化的方法来处理tylophora生物碱，这是一种有效的细胞毒剂家族，对药物敏感性和多药耐药性癌细胞系同样有效。所选路线的优势可通过邻菲喹啉嗪隐尿素（1）和菲硫唑烷（-）-antofine（2），（-）-酪氨酸（3）以及它们最近才分离的同类物（-）-的合成来说明榕肽C（4）。关键步骤包括（商业）硼酸与简单的芳基1,2-二卤化物之间的Suzuki交联，然后将所得产物精制为相应的2-炔基-联苯衍生物27、33、41和46后者经过PtCl2催化的环异构化，形成官能化的菲28、34、42和47，通过脱保护/ Pictet-Spengler环空串联将其转化为目标生物碱。由于这种方法的灵活性和鲁棒性，它可能能够系统地探索这种有前途的生物活性天然产物类别的药理特性。
• Total Synthesis of Phenanthroquinolizidine Alkaloids Using a Building Block Strategy
  作者：Young-In Jo、Cheol-Hong Cheon

  DOI：10.1021/acs.joc.9b01768

  日期：2019.9.20

  A concise and general strategy for the total synthesis of the phenanthroquinolizidine alkaloids has been developed. An iterative Suzuki–Miyaura coupling reaction between the requisite aryl boronic acid, 2-bromo-4,5-dimethoxyphenyl N-methyliminodiacetate (MIDA) boronate derived from boronic acid, and a suitable bromopyridine substrate bearing a homopropargyl alcohol at the 2-position generated the desired

  已经开发了用于总合成菲咯喹啉嗪生物碱的简明和通用的策略。所需的芳基硼酸，衍生自硼酸的2-溴-4,5-二甲氧基苯基N-甲基亚氨基二乙酸酯（MIDA）硼酸酯与合适的溴吡啶底物之间的迭代Suzuki-Miyaura偶联反应在生成的2位上带有高炔丙醇所需的邻-氮杂-三苯基化合物。对该三键进行氢化，然后用甲磺酰氯处理，得到其相应的四氢喹啉鎓离子中间体，随后将其与NaBH 4反应提供所需的六氢喹啉产品。最终的氧化电环化反应得到目标菲咯啉喹唑啉天然产物。这种合成方法仅需要在整个合成过程中使用三种色谱分离方法。

表征谱图