(±)-kusunokinin

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物 - 呋喃类木脂素
• 英文名称: (±)-kusunokinin
• 英文别名: (+/-)-kusunokinin；3-(benzo[d][1,3]dioxol-5-ylmethyl)-4-(3,4-dimethoxybenzyl)dihydrofuran-2(3H)-one；(3S,4S)-3-(1,3-benzodioxol-5-ylmethyl)-4-[(3,4-dimethoxyphenyl)methyl]oxolan-2-one
• 化学式: C₂₁H₂₂O₆
• 分子量: 370.402
• InChiKey: LEVKKQBBEVGIKN-CVEARBPZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  27
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  63.2
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (±)-kusunokinin 在 重水 、 双(三甲基硅烷基)氨基钾 作用下， 生成 (3R^*,4S^*)-3-deuterio-3-[3,4-(methylenedioxy)benzyl]-4-(3,4-dimethoxybenzyl)-γ-butyrolactone 、 (3R^*,4R^*)-3-deuterio-3-[3,4-(methylenedioxy)benzyl]-4-(3,4-dimethoxybenzyl)-γ-butyrolactone
  参考文献：
  名称：

  Stereoselective Syntheses of Cis- and Trans-Isomers of α-Hydroxy-α,β-dibenzyl-γ-butyrolactone Lignans:  New Syntheses of (±)-Trachelogenin and (±)-Guayadequiol

  摘要：

  Cis- and trans-isomers of alpha-hydroxy-alpha,beta-dibenzyI-gamma-butyrolactone lignans 1a,d-g and 2a,c,d were stereoselectively synthesized in good yields based on the electrophilic addition to the metal enolate of alpha-benzyl-gamma-butyolactone derivatives 1l-o and 3 as a key step, This method was applied to the syntheses of (+/-)-trachelogenin and (+/-)-guayadequiol, representative examples of the trans- and cis-isomers of alpha-hydroxy-alpha,beta-dibenzyl-y-butyrolactone lignan series.

  DOI：

  10.1021/jo9601932
• 作为产物：
  描述：

  3-(3,4-dimethoxy-phenyl)-propionyl chloride 在 sodium periodate 、 四氧化锇 、 lithium aluminium tetrahydride 、 titanium(IV) chloride tetrahydrofuran 、 N-甲基吗啉氧化物 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 甲苯 、 叔丁醇 为溶剂， 反应 119.42h， 生成 (±)-kusunokinin
  参考文献：
  名称：

  5-羟甲基二苄基丁内酯及相关木脂素的模块化合成及生物学研究

  摘要：

  二苄基丁内酯木脂素以其优异的生物学特性而闻名，特别是其显着的抗增殖活性。在此，我们报告了一种利用酰基-克莱森重排立体选择性制备关键中间体的二苄基丁内酯木脂素的新型、高效、会聚合成。报道的合成路线能够修饰这些木脂素以产生这些木脂素的 5-羟甲基衍生物。评估了这些类似物的生物活性，其衍生物显示出优异的细胞毒性特征，导致 Jurkat T 白血病细胞程序性细胞死亡，其中不到 2% 的孵育细胞进入坏死细胞死亡途径。

  DOI：

  10.3390/molecules23123057

文献信息

• Ni-Catalyzed Regioselective Dicarbofunctionalization of Unactivated Olefins by Tandem Cyclization/Cross-Coupling and Application to the Concise Synthesis of Lignan Natural Products
  作者：Shekhar KC、Prakash Basnet、Surendra Thapa、Bijay Shrestha、Ramesh Giri

  DOI：10.1021/acs.joc.8b00184

  日期：2018.3.2

  reaction protocol that regioselectively difunctionalizes unactivated olefins with tethered alkyl halides and arylzinc reagents. The reaction shows an excellent functional group tolerance (such as ketones, esters, nitriles, and halides) and a moderate to good level of diastereoselectivity. The current cyclization/cross-coupling also tolerates molecules containing base-sensitive racemizable stereocenters

  我们公开了（叔丁基）NiBr 2-催化的反应方案，通过束缚的烷基卤化物和芳基锌试剂将未活化的烯烃区域选择性地双官能化。该反应显示出优异的官能团耐受性（例如酮，酯，腈和卤化物）和中等至良好的非对映选择性。当前的环化/交叉偶联还容许包含对碱敏感的可消旋立体中心的分子，其在反应过程中不消旋地被保留。这种环化/交叉偶联提供了对（芳基甲基）碳和杂环支架的快速访问，这些支架广泛存在于各种天然产物和生物活性分子中作为结构核心。为了显示综合效用和通用性，我们已将此新方法以克为单位的数量应用于六个包含三个不同结构框架的木脂素天然产物的简明合成。我们进一步用自由基探针和选择性研究进行了机理研究，结果表明当前反应是通过单电子转移（SET）过程进行的。
• Synthesis of aryltetralin and dibenzylbutyrolactone lignans: (±)-lintetralin, (±)-phyltetralin, and (±)-kusunokinin
  作者：Pralhad A. Ganeshpure、Robert Stevenson

  DOI：10.1039/p19810001681

  日期：——

  Application of a general synthetic pathway for aryltetralin and dibenzylbutyrolactone lignans, starting from the lithium enolate of 3-(3,4-dimethoxybenzyl)butyrolactone (1) led to syntheses of (±)-lintetralin (4), (±)-phyltetralin (5), (±)-isogalcatin (12), and (±)-kusunokinin (13).

  从3-（3,4-二甲氧基苄基）丁内酯（1）的烯醇锂开始，芳基四氢萘和二苄基丁内酯木脂素的一般合成途径的应用导致了（±）-林四氢萘（4），（±）-叶四氢萘酚（ 5），（±）-异galactin（12）和（±）-苦参碱（13）。
• Simple Synthesis of<i>trans</i>-<i>α</i>,<i>β</i>-Dibenzyl-<i>γ</i>-butyrolactone Lignans by Diastereoselective Reduction of<i>α</i>-Benzylidene-<i>β</i>-benzyl-<i>γ</i>-butyrolactones Using NaBH₄–NiCl₂
  作者：Yasunori Moritani、Chiaki Fukushima、Toshikazu Miyagishima、Hiroshi Ohmizu、Tameo Iwasaki

  DOI：10.1246/bcsj.69.2281

  日期：1996.8

  ne lignans were synthesized by stereoselective reduction of α-benzylidene-β-benzyl-γ-butyrolactones using NaBH4–NiCl2. The reduction is found to proceed via conjugate addition of a hydride to an α-benzylidene-β-benzyl-γ-butyrolactone and the stereoselective protonation of the resulting metal enolate. The stereoselectivity would be brought about by the conformational rigidity of the phenyl moiety of

  反式-α,β-二苄基-γ-丁内酯木脂素是通过使用NaBH4-NiCl2立体选择性还原α-苄叉-β-苄基-γ-丁内酯合成的。发现还原是通过氢化物与 α-亚苄基-β-苄基-γ-丁内酯的共轭加成和所得金属烯醇化物的立体选择性质子化来进行的。立体选择性是由 1,3-烯丙基应变诱导的 α-苄基的苯基部分的构象刚性带来的。
• A synthesis of α-substituted trans-α, β-dibenzyl-γ-butyrolactones: diastereofacial differentiation in the electrophilic attack on the metal enolates of α, β-dibenzyl-γ-butyrolactones
  作者：Moritani Yasunori、Ukita Tatsuzo、Nishitani Takashi、Seki Masahiko、Iwasaki Tameo

  DOI：10.1016/s0040-4039(00)94458-7

  日期：1990.1

  α-Substituted trans-α, β-dibenzyl-γ-butyrolactones were synthesized in a diastereoselective manner by the reaction of the potassium enolates of α, β-dibenzyl-γbutyrolactones with electrophiles. The method was applied to the synthesis of (±)trachelogenin.

  通过α ，β-二苄基-γ-丁内酯的烯醇钾与亲电子试剂的反应，以非对映选择性的方式合成α-取代的反式-α，β-二苄基-γ-丁内酯。该方法应用于（±）trachelogenin的合成。
• Discovery of stereospecific cytotoxicity of (8R,8′R)-trans-arctigenin against insect cells and structure-activity relationship on aromatic ring
  作者：Satoshi Yamauchi、Asuka Nishimoto、Hisashi Nishiwaki、Kosuke Nishi、Takuya Sugahara

  DOI：10.1016/j.bmcl.2020.127191

  日期：2020.7

  One of the arctigenin stereoisomers, (8R,8'R)-trans-form 1, showed stereospecific cytotoxicity against insect cells, Sf9 and NIAS-AeAl-2 cells. By the comparison with other stereoisomers, the most importance of the 8'R stereochemistry for the higher activities was clarified. On the other hand, the wider range of activity level among stereoisomers against cancer cells, HL-60, was not observed. The structure-activity relationship research using derivatives bearing (8R,8'R)-trans-form was performed to show the same level of activities of 3-iodo, 4-iodo, and 3,4-methylenedioxy derivatives 28, 29, and 36 as (8R,8'R)-trans-arctigenin 1. In the examination of thiono derivatives, 4-iodo thiono and 3,4-methylenedioxy thiono derivatives 66, 67 showed similar level of activities to that of (8R,8'R)-trans-arctigenin 1. The expression of ribosomal 28S rRNA gene of Sf9 cells was increased by (8R,8'R)-trans-arctigenin 1, whereas a degradation of DNA was not observed.