trans-isohumulone | 1534-03-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: trans-isohumulone
• 英文别名: cis-isohumulone；isohumulone；(4R)-3,4r-dihydroxy-2-isovaleryl-5c-(3-methyl-but-2-enyl)-4-(4-methyl-pent-3-enoyl)-cyclopent-2-enone；(4R)-3,4r-Dihydroxy-2-isovaleryl-5c-(3-methyl-but-2-enyl)-4-(4-methyl-pent-3-enoyl)-cyclopent-2-enon；(-)-cis-isohumulone；cis-Isohumulon；(4R,5S)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbut-2-enyl)-4-(4-methylpent-3-enoyl)cyclopent-2-en-1-one
• CAS: 1534-03-8
• 化学式: C₂₁H₃₀O₅
• 分子量: 362.466
• InChiKey: QARXXMMQVDCYGZ-VFNWGFHPSA-N

物化性质

• 沸点：
  530.5±50.0 °C

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  26
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  91.7
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  trans-isohumulone 在 sodium tetrahydroborate 、 sodium periodate 作用下， 以 1,4-二氧六环 、 异辛烷 、 水 为溶剂， 生成 Dehydroisohumulinsaeure
  参考文献：
  名称：

  Khokher,A. et al., Bulletin des Societes Chimiques Belges, 1967, vol. 76, p. 101 - 110

  摘要：

  DOI：
• 作为产物：
  描述：

  tetrahydrohumulone 在 (1S,2S)-4-环己烯-1,2-二胺 、 magnesium sulfate 、 potassium hydroxide 作用下， 以 水 、 异丙醇 为溶剂， 反应 6.0h， 生成 trans-isohumulone
  参考文献：
  名称：

  CIS 3,4-DIHYDROXY-2-(3-METHYLBUTANOYL)-5-(3-METHYLBUTYL)-4-(4-METHYLPENTANOYL)CYCLOPENT-2-EN-1-ONE DERIVATIVES, SUBSTANTIALLY ENANTIOMERICALLY PURE COMPOSITIONS AND METHODS

  摘要：

  本申请提供了顺式3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮衍生物及其基本对映纯组合物。这些衍生物包括(+)-(4S,5R)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，(-)-(4R,5S)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，以及它们的盐和晶体。该申请还提供了使用所披露的化合物和组合物来激活PPARγ、激活GPR120、抑制炎症，并治疗对PPARγ调节敏感的病症、对GPR120调节敏感的病症以及代谢紊乱如糖尿病的方法。

  公开号：

  US20120108671A1

文献信息

• The photochemistry of <i>trans</i>-isohumulone, a bitter flavouring component of beer
  作者：Alan C Weedon、John S Morrison

  DOI：10.1139/v08-072

  日期：2008.8.1

  Methanolic solutions of trans-isohumulone (2), a major bitter flavouring component in beer, were irradiated with UV light of 313 nm wavelength and yielded four primary products containing an enolized cyclic β-triketone moiety: cis-isohumulone (3), humulone (1), dehydro-isohumulone (7), and dehydro-humulinic acid (5). The last of these products results from loss of the 4-methyl-3-pentenoyl side chain of trans-isohumulone. Nine volatile products derived from this side chain were identified and quantitated. The identifications of all photoproducts were confirmed by independent preparation of authentic samples. No evidence of either intramolecular or intermolecular 2+2 cyclo-addition was observed. This work clarifies previous contradictory reports of the products of isohumulone photolysis and provides an example of unexpected photochemistry of an alkenyl-substituted enolized cyclic β-triketone.Key words: trans-isohumulone, photo-degradation, cyclic β-triketone.

  反式-异胡麻酮（2）是啤酒中的一种主要苦味香料成分，其甲醇溶液经波长为 313 纳米的紫外线照射后，产生了四种含有烯醇化环β-三酮分子的初级产品：顺式-异胡麻酮（3）、胡麻酮（1）、脱氢-异胡麻酮（7）和脱氢-胡麻酸（5）。最后一种产品是反式-异胡柚酮的 4-甲基-3-戊烯酰侧链脱落后产生的。从该侧链衍生出的九种挥发性产物已被鉴定和定量。所有光反应产物的鉴定结果都已通过独立制备真实样品得到证实。没有观察到分子内或分子间 2+2 环加成的证据。这项研究澄清了之前关于异胡麻酮光解产物的相互矛盾的报道，并提供了一个烯基取代烯醇化环β-三酮的意想不到的光化学实例。
• A Kinetic Study on the Isomerization of Hop α-Acids
  作者：Barbara Jaskula、Pawel Kafarski、Guido Aerts、Luc De Cooman

  DOI：10.1021/jf8004965

  日期：2008.8.1

  In this article, a detailed study on hop alpha-acid isomerization kinetics is presented. Because of the complex wort matrix and interfering interactions occurring during real wort boiling (i.e., trub formation and alpha-acids/iso-alpha-acids complexation), this investigation on alpha-acid isomerization kinetics was performed in aqueous buffer solution as a function of time (0-90 min) and heating temperature

  在本文中，对啤酒花α-酸异构化动力学进行了详细研究。由于麦芽汁基质复杂，并且在真正的麦芽汁煮沸过程中发生干扰相互作用（即t形成和α-酸/异α-酸络合），因此对α-酸异构化动力学的研究是在缓冲水溶液中进行的。时间（0-90分钟）和加热温度（80-100摄氏度）。确定了形成单个异α-酸的速率常数和活化能。发现异α-酸的形成遵循一级动力学和阿累尼乌斯行为。注意到形成反式和顺式异构体的活化能不同，形成反式-α-酸的活化能低大约9 kJmol（-1）。
• CIS, 3,4-DIHYDROXY-2-(3-METHYLBUTANOYL)-5-(3-METHYLBUTYL)-4-(4-METHYLPENTANOYL)CYCLOPENT-2-EN-1-ONE DERIVATIVES, SUBSTANTIALLY ENANTIOMERICALLY PURE COMPOSITIONS AND METHODS
  申请人：CARROLL Brian J.

  公开号：US20130018105A1

  公开（公告）日：2013-01-17

  The present application provides cis 3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one derivatives and substantially enantiomerically pure compositions thereof. These derivatives include (+)-(4S,5R)—3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, (−)-(4R,5S)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, and salts and crystals thereof. The application further provides methods of using the disclosed compounds and compositions to activate PPARγ, activate GPR120, inhibit inflammation, and treat conditions responsive to PPARγ modulation, conditions responsive to GPR120 modulation, and metabolic disturbances such as diabetes.

  本申请提供了cis 3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮衍生物及其相当对映纯的组合物。这些衍生物包括(+)-(4S,5R)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，(-)-(4R,5S)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，以及它们的盐和晶体。该申请进一步提供了使用所述化合物和组合物激活PPARγ，激活GPR120，抑制炎症，以及治疗对PPARγ调节敏感的疾病，对GPR120调节敏感的疾病和代谢紊乱，如糖尿病的方法。
• Cis, 3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-derivatives, substantially enantiomerically pure compositions and methods
  申请人：Carroll Brian J.

  公开号：US08410179B2

  公开（公告）日：2013-04-02

  The present application provides cis 3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one derivatives and substantially enantiomerically pure compositions thereof. These derivatives include (+)-(4S,5R)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, (−)-(4R,5S)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, and salts and crystals thereof. The application further provides methods of using the disclosed compounds and compositions to activate PPARγ, activate GPR120, inhibit inflammation, and treat conditions responsive to PPARγ modulation, conditions responsive to GPR120 modulation, and metabolic disturbances such as diabetes.

  本申请提供cis 3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮衍生物及其相当对映纯的组合物。这些衍生物包括(+)-(4S,5R)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，(-)-(4R,5S)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，以及它们的盐和晶体。本申请还提供使用所述化合物和组合物激活PPARγ、激活GPR120、抑制炎症以及治疗对PPARγ调节敏感的疾病、对GPR120调节敏感的疾病和代谢紊乱，如糖尿病的方法。
• CIS 3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-derivatives, substantially enantiomerically pure compositions and methods
  申请人：Carroll Brian J.

  公开号：US08410178B2

  公开（公告）日：2013-04-02

  The present application provides cis 3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one derivatives and substantially enantiomerically pure compositions thereof. These derivatives include (+)-(4S,5R)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, (−)-(4R,5S)-3,4-dihydroxy-2-(3-methylbutanoyl)-5-(3-methylbutyl)-4-(4-methylpentanoyl)cyclopent-2-en-1-one, and salts and crystals thereof. The application further provides methods of using the disclosed compounds and compositions to activate PPARγ, activate GPR120, inhibit inflammation, and treat conditions responsive to PPARγ modulation, conditions responsive to GPR120 modulation, and metabolic disturbances such as diabetes.

  本申请提供了cis 3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮衍生物及其相对地对映纯的组成物。这些衍生物包括(+)-(4S,5R)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，(-)-(4R,5S)-3,4-二羟基-2-(3-甲基丁酰基)-5-(3-甲基丁基)-4-(4-甲基戊酰基)环戊-2-烯-1-酮，以及它们的盐和晶体。该申请还提供了使用上述化合物和组合物激活PPARγ，激活GPR120，抑制炎症，以及治疗对PPARγ调节有响应的病症，对GPR120调节有响应的病症，以及代谢紊乱，如糖尿病的方法。