lamellarin K | 149378-56-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: lamellarin K
• 英文别名: 7,18-Dihydroxy-12-(4-hydroxy-3-methoxyphenyl)-8,16,17-trimethoxy-4-oxa-1-azapentacyclo[11.8.0.02,11.05,10.014,19]henicosa-2(11),5,7,9,12,14,16,18-octaen-3-one
• CAS: 149378-56-3
• 化学式: C₂₉H₂₅NO₉
• 分子量: 531.519
• InChiKey: CVWRVFSYXZNUEG-UHFFFAOYSA-N

物化性质

• 熔点：
  230-232 °C
• 沸点：
  821.8±65.0 °C(Predicted)
• 密度：
  1.49±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  39
• 可旋转键数：
  5
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  129
• 氢给体数：
  3
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  lamellarin K 在 4-二甲氨基吡啶 、 三乙胺 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 反应 22.0h， 生成 14-(4-acetoxy-3-methoxyphenyl)-3,10-diacetoxy-2,11,12-trimethoxy-6H-chromeno[4',3':4,5]pyrrolo[2,1-a]isoquinolin-6-one
  参考文献：
  名称：

  Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings

  摘要：

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.

  DOI：

  10.1021/jo061810h
• 作为产物：
  描述：

  2,3,4-三甲氧基苯甲醛 在 palladium on activated charcoal lithium aluminium tetrahydride 、 三氯化铝 、 氢气 、 sodium hydride 、 碳酸氢钠 、 sodium carbonate 、 potassium carbonate 、 溶剂黄146 、 乙二胺 、 三氯氧磷 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 乙酸乙酯 、 N,N-二甲基甲酰胺 、 丙酮 、 乙腈 、 苯 为溶剂， 20.0 ℃ 、517.11 kPa 条件下， 反应 53.0h， 生成 lamellarin K
  参考文献：
  名称：

  Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings

  摘要：

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.

  DOI：

  10.1021/jo061810h

文献信息

• Syntheses of Lamellarins I and K by [3 + 2] Cycloaddition of a Nitrone to an Alkyne
  作者：Maite Díaz、Enrique Guitián、Luis Castedo

  DOI：10.1055/s-2001-15143

  日期：——

  Lamellarins I and K were obtained by a new approach based on the 1,3-dipolar cycloaddition of a nitrone to an alkyne. The key cycloaddition yields an isoxazoline which rearranges to afford the central pyrrole ring.

  层层素 I 和 K 是通过一种新方法获得的，该方法基于腈氧化物与炔烃的 1,3-双极环加成反应。关键的环加成反应产生了异噁唑啉，随后重排形成中心吡咯环。
• Convergent total synthesis of lamellarin K†
  作者：Martin Banwell、David Hockless

  DOI：10.1039/a705874h

  日期：——

  The azomethine ylide derived from dihydroisoquinolinium salt 24 undergoes an intramolecular [3 + 2] cycloaddition reaction to give pyrrole 25 which upon de-isopropylation affords the marine alkaloid lamellarin K 4.

  由二氢异喹啉盐24衍生的偶氮亚甲基季铵盐发生一种分子内[3 + 2]环加成反应，生成吡咯25，该吡咯经过去异丙基化反应得到海洋生物碱拉梅拉林K 4。
• Biomimetic Syntheses of Lamellarin and Lukianol-Type Alkaloids
  作者：Wolfgang Steglich、Christian Peschko、Christian Winklhofer、Andreas Terpin

  DOI：10.1055/s-2006-950191

  日期：——

  of 3,4-diarylpyrrole-2,5-dicarboxylic acids from arylpyruvic acids and 2-arylethylamines was used as a key step for the synthesis of several marine pyrrole alkaloids. The utility of this method is illustrated through the development of syntheses of ningalin B (5), lamellarins G (11a) and K (lib), lukianol A (32), and a lukianol-lamellarin hybrid (24).

  由芳基丙酮酸和 2-芳基乙胺形成 3,4-二芳基吡咯-2,5-二羧酸是合成几种海洋吡咯生物碱的关键步骤。该方法的实用性通过开发 ningalin B (5)、lamellarins G (11a) 和 K (lib)、lukianol A (32) 和 Lukianol-lamellarin 杂化物 (24) 的合成来说明。
• 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。
• [EN] ANTITUMORAL ANALOGS OF LAMELLARINS<br/>[FR] ANALOGUES ANTITUMORAUX DE LAMELLARINES
  申请人：PHARMA MAR SAU

  公开号：WO2004014917A3

  公开（公告）日：2004-05-13