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lamellarin Q | 168010-02-4

中文名称
——
中文别名
——
英文名称
lamellarin Q
英文别名
methyl 3,4-bis(4-hydroxyphenyl)-1H-pyrrole-2-carboxylate
lamellarin Q化学式
CAS
168010-02-4
化学式
C18H15NO4
mdl
——
分子量
309.321
InChiKey
JMIXRTRKRGJSRQ-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    145-210 °C (decomp)
  • 沸点:
    540.4±50.0 °C(Predicted)
  • 密度:
    1.327±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.4
  • 重原子数:
    23
  • 可旋转键数:
    4
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.06
  • 拓扑面积:
    82.6
  • 氢给体数:
    3
  • 氢受体数:
    4

SDS

SDS:22e2d23a08a9c8250d15e0ece2487970
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上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    乙酸酐lamellarin Q吡啶 作用下, 生成 Lamellarin Q triacetate
    参考文献:
    名称:
    Lamellarins Q and R: New Aromatic Metabolites From an Australian Marine Sponge, Dendrilla cactos
    摘要:
    在澳大利亚新南威尔士州海岸采集的仙人掌 Dendrilla 标本中发现了两种新生物碱,即片状生物碱 Q (19) 和 R (20)。
    DOI:
    10.1071/ch9951491
  • 作为产物:
    描述:
    对羟基苯乙腈N-溴代丁二酰亚胺(NBS) 、 palladium 10% on activated carbon 、 氢溴酸氢气sodium acetate三溴化硼potassium carbonate溶剂黄146过氧化苯甲酰 作用下, 以 甲醇乙醚二氯甲烷二甲基亚砜 为溶剂, 反应 31.5h, 生成 lamellarin Q
    参考文献:
    名称:
    用原酸酯掩盖的α-酮酸合成lamellarin生物碱†
    摘要:
    丙酮酸和其他α-酮酸经常作为代谢途径的中间体,但它们在全合成中的应用却取得了有限的成功。在这项工作中,我们提出了一种生物启发的策略,该策略利用高度官能化的OBO(氧杂双环[2.2.2]辛基)原酸酯掩盖的α-酮酸作为构建I型和II型薄片蛋白生物碱的关键中间体。Lamellarin D通过关键的1,4-二羰基分7步合成,丙酮酸产率为22%。合成的关键步骤包括一锅法双烯醇化1,然后双环化形成目标吡咯/ N-乙烯基吡咯核心和后期直接C–H芳基化。最后,合成了一种新的由OBO掩盖的β-氰基酮1,被证明是通过HBr介导的环化反应构建II型​​层状蛋白核的有价值的中间体。以此方式,由丙酮酸以7个步骤合成lamellarin Q,且产率为20%。
    DOI:
    10.1039/c8sc05678a
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文献信息

  • Formation of 3,4-Diarylpyrrole- and Pyrrolocoumarin Core of Natural Marine Products via Barton-Zard Reaction and Selective O-Demethylation
    作者:Eugenia A. Silyanova、Alexander V. Samet、Lev K. Salamandra、Victor N. Khrustalev、Victor V. Semenov
    DOI:10.1002/ejoc.202000099
    日期:2020.4.16
    related natural products based on Barton–Zard reaction of nitrostilbenes with ethyl isocyanoacetate was developed. Treatment of diarylpyrrole‐2‐carboxylates with 1 equiv. of. BBr3 resulted in selective O‐demethylation of the ortho‐methoxy group, while other methoxy groups remained intact. Subsequent base‐induced lactonization provides the target pyrrolocoumarins.
    基于亚硝基苯与异氰基乙酸乙酯的Barton-Zard反应,开发了一种无金属方法制备薄片蛋白和相关天然产物的吡咯香豆素核的方法。1当量处理二芳基吡咯-2-羧酸酯。的。BBr 3导致邻甲氧基的选择性O-去甲基化,而其他甲氧基保持完整。随后的碱基诱导的内酯化提供了目标吡咯香豆素。
  • Convergent syntheses of the pyrrolic marine natural products lamellarin-O, lamellarin-Q, lukianol-A and some more highly oxygenated congeners
    作者:Martin G. Banwell、Bernard L. Flynn、Ernest Hamel、David C. R. Hockless
    DOI:10.1039/a606793j
    日期:——
    The marine alkaloids lamellarin-Q 1, lamellarin-O 2 and lukianol-A 3 as well as their more highly oxygenated congeners 22 and 23 are synthesised using Stille, Suzuki or Negishi cross-coupling reactions as the key step.
    海洋生物碱lamellarin-Q 1、lamellarin-O 2和lukianol-A 3以及它们的更高氧化的同系物22和23,都是通过以Stille、Suzuki或Negishi交叉偶联反应作为关键步骤来合成的。
  • Antitumoral analogs of lamellarins
    申请人:Pharma Mar, S.A.U.
    公开号:EP2138496A1
    公开(公告)日:2009-12-30
    New lamellarins are provided of the general formula III : wherein X is selected from the group consisting of N, O and S; wherein R1, R2, R3, R4, R5, R6, R7, R8 and R9 are as described in the claims and the dotted line represents a single or double bond; or a pharmaceutically acceptable salt, derivative, prodrug or stereoisomer thereof.
    提供了通式 III 的新型片层蛋白: 其中 X 选自 N、O 和 S 组成的组; 其中 R1、R2、R3、R4、R5、R6、R7、R8 和 R9 如权利要求所述,虚线代表单键或双键; 或其药学上可接受的盐、衍生物、原药或立体异构体。
  • Palladium-catalyzed cross-coupling of N-benzenesulfonyl-3,4-dibromopyrrole and its application to the total syntheses of lamellarins O, P, Q, and R
    作者:Tsutomu Fukuda、Ei-ichi Sudo、Kozue Shimokawa、Masatomo Iwao
    DOI:10.1016/j.tet.2007.10.105
    日期:2008.1
    Palladium-catalyzed Suzuki-Miyaura Coupling of N-benzenesulfonyl-3,4-dibromopyrrole with a variety of arylboronic acids gave the corresponding 3,4-diarylpyrroles in high yields. The 3,4-differentially arylated pyrroles could also be prepared by stepwise cross-coupling approach. The total syntheses of lamellarins O, P, Q, and R have been achieved by using the cross-coupling and the directed lithiation as key reactions. (c) 2007 Elsevier Ltd. All rights reserved.
  • A Paal–Knorr Approach to 3,4-Diaryl-Substituted Pyrroles: Facile Synthesis of Lamellarins O and Q
    作者:Alfredo Vazquez、Armando Ramírez-Rodríguez、José Méndez、Cristina Jiménez、Fernando León
    DOI:10.1055/s-0032-1317351
    日期:——
    A very simple, yet efficient synthetic methodology, to obtain 3,4-diaryl-substituted pyrroles is described. The approach is based on the Knoevenagel condensation between arylacetonitriles and substituted aromatic aldehydes, followed by conjugate addition of cyanide to afford succinonitriles in excellent yields. The products thus obtained were subjected to DIBAL-H reduction, followed by cyclization under acidic conditions to produce the corresponding pyrroles in good overall yields. The utility of this protocol is exemplified by the synthesis of the marine alkaloids lamellarins O and Q.
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