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(2R,3S,4S)-5,7,3',4'-tetrabenzyloxy-4-methoxyflavan-3-ol | 294203-72-8

中文名称
——
中文别名
——
英文名称
(2R,3S,4S)-5,7,3',4'-tetrabenzyloxy-4-methoxyflavan-3-ol
英文别名
(2R,3S,4S)-5,7,3',4'-tetrabenzyloxy-4-methoxyflavan;(2R,3S,4S)-2-[3,4-bis(phenylmethoxy)phenyl]-4-methoxy-5,7-bis(phenylmethoxy)-3,4-dihydro-2H-chromen-3-ol
(2R,3S,4S)-5,7,3',4'-tetrabenzyloxy-4-methoxyflavan-3-ol化学式
CAS
294203-72-8
化学式
C44H40O7
mdl
——
分子量
680.797
InChiKey
UCCKKKFTHGEUEB-YWSDUWMSSA-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

  • 沸点:
    806.9±65.0 °C(Predicted)
  • 密度:
    1.28±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    8.1
  • 重原子数:
    51
  • 可旋转键数:
    14
  • 环数:
    7.0
  • sp3杂化的碳原子比例:
    0.18
  • 拓扑面积:
    75.6
  • 氢给体数:
    1
  • 氢受体数:
    7

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

  • 作为反应物:
    描述:
    参考文献:
    名称:
    Synthetic Studies of Proanthocyanidins. Highly Stereoselective Synthesis of the Catechin Dimer, Procyanidin-B3
    摘要:
    描述了苯甲基化原花青定-B3(一种缩合儿茶素二聚体)的手性合成。在TiCl4存在下,以5,7,3′,4′-四苯甲基儿茶素与(2R,3S,4S)-5,7,3′,4′-四苯甲氧基-3-乙酰氧基-4-甲氧基黄烷作为亲电试剂进行缩合反应,得到选择性的八苯甲基化原花青定-B3。
    DOI:
    10.1271/bbb.66.1764
  • 作为产物:
    参考文献:
    名称:
    Synthesis of Procyanidin B1, B2, and B4 and Their Anti-Inflammatory Activity: The Effect of 4-Alkoxy Group of Catechin and/or Epicatechin Electrophiles for Condensation
    摘要:
    在 Yb(OTf)3 催化下,以甲氧基和/或 4-(2"-乙氧基乙氧基)二元醇为亲电体进行等摩尔缩合,合成了原花青素 B1、B2 和 B3。研究了合成原花青素 B1、B2 和 B4 对 12-O- 十四碳酰樟脑酚-13-乙酸酯(TPA)诱导的小鼠耳朵炎症的抗炎作用。在 200 μg 剂量下,原花青素 B1、B2 和 B4 对 TPA 诱导的小鼠耳朵炎症的抑制率分别为 48%、34% 和 29%。它们的活性强于吲哚美辛和甘草次酸(通常使用的抗炎药)。
    DOI:
    10.2174/157017812800233697
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文献信息

  • Synthetic studies of proanthocyanidins. Part 2: Stereoselective gram-scale synthesis of procyanidin-B3
    作者:Akiko Saito、Noriyuki Nakajima、Akira Tanaka、Makoto Ubukata
    DOI:10.1016/s0040-4020(02)00936-5
    日期:2002.9
    A stereoselective synthesis of procyanidin-B3, a condensed catechin dimer, is described. Condensation of benzylated catechin with various 4-O-alkylated flavan-3,4-diol derivatives as an electrophile in the presence of a Lewis acid led to protected procyanidin-B3 and its diastereomer. In particular, the reaction using (2R,3S,4S)-3-acetoxy-5,7,3′,4′-tetrabenzyloxy-4-(2″-ethoxyethoxy)flavan as an electrophile
    描述了花青素-B3(一种儿茶素缩合二聚体)的立体选择性合成。在路易斯酸的存在下,苄基儿茶素与各种4 - O-烷基化的flavan-3,4-二醇衍生物作为亲电试剂的缩合导致被保护的原花青素-B3及其非对映异构体。特别地,在TMSOTf存在下,使用(2 R,3 S,4 S)-3-乙酰氧基-5,7,3',4'-四苄氧基-4-(2“-乙氧基乙氧基)黄酮作为亲电试剂的反应在-78℃下,得到具有高立体选择性和优良分离产率的八-O-苄基化花青素-B3。此外,我们成功地完成了保护性原花青素B3的立体选择性克级合成。
  • First synthesis of astilbin, biologically active glycosyl flavonoid isolated from Chinese folk medicine
    作者:Ken Ohmori、Hiroki Ohrui、Keisuke Suzuki
    DOI:10.1016/s0040-4039(00)00826-1
    日期:2000.7
    A synthetic route to a biologically active glycosyl flavonoid, astilbin (1), was developed. The tetra-benzyl ether 4, derived from (+)-catechin, was glycosylated with the L-rhamnosyl donor 10 by using Cp2HfCl2AgClO4, and subsequent oxidation of the C(4) position of the flavan skeleton followed by deprotection gave 1. (C) 2000 Elsevier Science Ltd. All rights reserved.
  • Cationic zirconocene- or hafnocene-based Lewis acids in organic synthesis: glycoside–flavonoid analogy
    作者:Ken Ohmori、Keisuke Hatakeyama、Hiroki Ohrui、Keisuke Suzuki
    DOI:10.1016/j.tet.2003.08.076
    日期:2004.2
    Cationic metallocene species, generated from Cp2MCl2 and AgClO4 (M=Zr, Hf), were used for the glycosylation of catechin derivative 2, enabling a concise synthesis of a glycosyl flavonoid, astilbin (1). Further study revealed the efficiency of this Lewis acidic species for S(N)1-type activation of the C(4) position of catechin derivative 11, enabling selective substitution with various nucleophiles. (C) 2003 Elsevier Ltd. All rights reserved.
  • Synthetic Studies of Proanthocyanidins. Highly Stereoselective Synthesis of the Catechin Dimer, Procyanidin-B3
    作者:Akiko SAITO、Noriyuki NAKAJIMA、Akira TANAKA、Makoto UBUKATA
    DOI:10.1271/bbb.66.1764
    日期:2002.1.1
    A stereoselective synthesis of benzylated procyanidin-B3, a condensed catechin dimer, is described. Condensation of 5,7,3′,4′-tetrabenzylcatechin with (2R,3S,4S)-5,7,3′,4′-tetrabenzyloxy-3-acetoxy-4-methoxyflavan as an electrophile in the presence of TiCl4 led to octabenzylated procyanidin-B3 stereoselectively.
    描述了苯甲基化原花青定-B3(一种缩合儿茶素二聚体)的手性合成。在TiCl4存在下,以5,7,3′,4′-四苯甲基儿茶素与(2R,3S,4S)-5,7,3′,4′-四苯甲氧基-3-乙酰氧基-4-甲氧基黄烷作为亲电试剂进行缩合反应,得到选择性的八苯甲基化原花青定-B3。
  • Synthesis of Procyanidin B1, B2, and B4 and Their Anti-Inflammatory Activity: The Effect of 4-Alkoxy Group of Catechin and/or Epicatechin Electrophiles for Condensation
    作者:M. Katoh、Y. Oizumi、Y. Mohri、M. Hirota、H. Makabe
    DOI:10.2174/157017812800233697
    日期:2012.4.24
    Procyanidin B1, B2, and B3 were synthesized based on a Yb(OTf)3 catalyzed equimolar condensation using methoxy and/or 4-(2”-ethoxyethoxy)drivatives as electrophiles. The anti-inflammatory effect of synthetic procyanidin B1, B2, and B4 on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation of mouse ears was examined. Procyanidin B1, B2, B 4 suppressed TPA-induced inflammation of mouse ears by 48%, 34%, and 29%, respectively, at a dose of 200 μg. Their activities are stronger than those of indomethacin and glycyrrhetinic acid, the normally used antiinflammatory agent.
    在 Yb(OTf)3 催化下,以甲氧基和/或 4-(2"-乙氧基乙氧基)二元醇为亲电体进行等摩尔缩合,合成了原花青素 B1、B2 和 B3。研究了合成原花青素 B1、B2 和 B4 对 12-O- 十四碳酰樟脑酚-13-乙酸酯(TPA)诱导的小鼠耳朵炎症的抗炎作用。在 200 μg 剂量下,原花青素 B1、B2 和 B4 对 TPA 诱导的小鼠耳朵炎症的抑制率分别为 48%、34% 和 29%。它们的活性强于吲哚美辛和甘草次酸(通常使用的抗炎药)。
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