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(-)-trans-blechnic acid

中文名称
——
中文别名
——
英文名称
(-)-trans-blechnic acid
英文别名
blechnic acid;(2S,3R)-4-[(E)-2-carboxyethenyl]-2-(3,4-dihydroxyphenyl)-7-hydroxy-2,3-dihydro-1-benzofuran-3-carboxylic acid
(-)-trans-blechnic acid化学式
CAS
——
化学式
C18H14O8
mdl
——
分子量
358.304
InChiKey
GJHXGOBGPWPCCK-HFPBVCCTSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    1.6
  • 重原子数:
    26
  • 可旋转键数:
    4
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.11
  • 拓扑面积:
    145
  • 氢给体数:
    5
  • 氢受体数:
    8

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
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

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文献信息

  • Diastereomers of lithospermic acid and lithospermic acid B from Monarda fistulosa and Lithospermum erythrorhizon
    作者:Toshihiro Murata、Kanae Oyama、Minami Fujiyama、Bunmei Oobayashi、Kaoru Umehara、Toshio Miyase、Fumihiko Yoshizaki
    DOI:10.1016/j.fitote.2013.08.009
    日期:2013.12
    Monardic acids A (1) and B (2), which are (7R,8R) diastereomers of lithospermic acid (LA) and lithospermic acid B, respectively, were isolated from Monarda fistulosa. A (75,8R) isomer (3) of LA was also isolated from this plant, and a (7R,8S) isomer (7) of LA was obtained from Lithospermum erythrorhizon. The absolute configuration of 1 was confirmed by analysis of its hydrolysates, 7-epiblechnic acid and 2R-3-(3,4-dihydroxyphenyl)-2-hydroxypropanoic acid. The configuration in the dihydrobenzofuran moieties of 2, 3, and 7 was extrapolated by using the phenylglycine methyl ester method and a Cotton effect at approximately 250-260 nm in their electronic circular dichroism spectra. Diastereomers (1-3 and 7) displayed moderate hyaluronidase inhibitory and histamine release inhibitory activities. (C) 2013 Elsevier B.V. All rights reserved.
  • Stereoselective phenolic coupling in Blechnum spicant: formation of 8–2′ linked (−)-cis-blechnic, (−)-trans-blechnic and (−)-brainic acids
    作者:Chang-Zeng Wang、Laurence B. Davin、Norman G. Lewis
    DOI:10.1039/b008174o
    日期:——
    In vivo administration experiments using stable (13C) and radio (14C) labeled precursors provide further evidence for vascular plant proteins engendering specific but distinct phenolic coupling modes, i.e. in this case for stereoselective 8–2′ coupling leading to the optically active lignans, (–)-blechnic and (–)-brainic acids.
  • Asymmetric Total Synthesis of (–)-trans-Blechnic Acid via Rhodium(II)-Catalyzed C–H Insertion and Palladium(II)-Catalyzed C–H Olefination Reactions
    作者:Shunichi Hashimoto、Motoki Ito、Ryosuke Namie、Janagiraman Krishnamurthi、Hitomi Miyamae、Koji Takeda、Hisanori Nambu
    DOI:10.1055/s-0033-1340291
    日期:——
    An asymmetric total synthesis of ()-trans-blechnic acid, a dihydrobenzofuran neolignan, has been achieved. The key steps involve an elaboration of the cis-2,3-dihydrobenzofuran core structure by enantio- and diastereoselective intramolecular C–H insertion using dirhodium(II) tetrakis[N-phthaloyl-(R)-tert-leucinate] [Rh2(R-PTTL)4] and a direct coupling of an acrylate unit with the core structure employing
    (-)-trans-blechnic acid,一种二氢苯并呋喃新木脂素的不对称全合成已经实现。关键步骤包括使用四[N-邻苯二甲酰基-(R)-叔亮氨酸][Rh2(R)二铑(II),通过对映选择性和非对映选择性分子内C-H插入来阐述cis-2,3-二氢苯并呋喃核心结构。 -PTTL)4] 和丙烯酸酯单元与核心结构的直接偶联,采用 Yu 的钯 (II) 催化的分子间 C-H 烯化。
  • Chemical and Chemotaxonomical Studies of Ferns. LXXXI. Characteristic Lignans of Blechnaceous Ferns.
    作者:Hiroshi WADA、Tsunehiro KIDO、Nobutoshi TANAKA、Takao MURAKAMI、Yasuhisa SAIKI、Chiu-Ming CHEN
    DOI:10.1248/cpb.40.2099
    日期:——
    Four lignans, blechnic acid (1), 7-epiblechnic acid (3), 8-epiblechnic acid (6) and brainic acid (2), were isolated from six Blechnaceous ferns, Blechnum orientale, Struthiopteris amabilis, S. niponica, Woodwardia orientalis, W. prolifera and Brainea insignis. Their structures were determined by spectroscopic methods and chemical conversion.
    从六种鳞毛蕨类植物中分离出四种木脂素,即贝莱尼酸(1)、7-表贝莱尼酸(3)、8-表贝莱尼酸(6)和脑酸(2),这六种植物分别是东方鳞毛蕨、可爱鳞毛蕨、日本鳞毛蕨、东方木蕨、多叶木蕨和斑纹鳞毛蕨。通过光谱法和化学转化确定了它们的结构。
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