3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylic acid ethyl ester | 147611-86-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylic acid ethyl ester
• 英文别名: rac-3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylic acid ethyl ester；ethyl 3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylate；ethyl 7-hydroxy-8-propyl-3,4-dihydro-2H-chromene-2-carboxylate
• CAS: 147611-86-7
• 化学式: C₁₅H₂₀O₄
• 分子量: 264.321
• InChiKey: BRKDXWVOPZQVKT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylic acid ethyl ester 在 吡啶 、 三氟化硼乙醚 、 乙酸酐 、 对甲苯磺酸 、 溶剂黄146 作用下， 反应 62.5h， 生成 6-Acetyl-7-hydroxy-8-propyl-chroman-2-carboxylic acid ethyl ester
  参考文献：
  名称：

  3,4-二氢-2H-1-苯并吡喃-2-羧酸和相关化合物作为白三烯拮抗剂。

  摘要：

  对与标准肽基白三烯拮抗剂FPL 55712（1）中存在的2-羟基苯乙酮药效团相连的一系列3,4-二氢-2H-1-苯并吡喃-2-羧酸的评估导致发现Ro 23-3544（ 7），与LTD4相比，具有比标准品更大的效力和作用持续时间的拮抗剂（气雾剂给药途径，豚鼠支气管收缩模型）。有趣的是，该化合物还有效抑制了LTB4诱导的支气管收缩，而1则没有。试图建立结构-活性关系的尝试涉及对2-羟基苯乙酮部分，连接链和色氨酸系统的修饰。所有变体产生的类似物相对于酸7都是无活性的或具有降低的效能，通过两种方法可实现7的光学拆分。对映体的绝对构型是通过对S对映体的中间体及其盐的X射线晶体学分析确定的。尽管对映异构体在静脉内给药时在体外试验和体内均显示出相似的效力，但通过气雾剂途径给药时，豚鼠支气管收缩模型与LTC4和LTD4相比有显着差异（S肽的效力高15倍）。已经将7的特性与最近报道的几种白三烯拮抗剂进行了比

  DOI：

  10.1021/jm00128a028
• 作为产物：
  描述：

  7-hydroxy-4-oxo-8-propyl-4H-1-benzopyran-2-carboxylic acid ethyl ester 在 palladium on activated charcoal 氢气 作用下， 以 溶剂黄146 为溶剂， 反应 41.0h， 以43.6%的产率得到3,4-dihydro-7-hydroxy-8-propyl-2H-1-benzopyran-2-carboxylic acid ethyl ester
  参考文献：
  名称：

  3,4-二氢-2H-1-苯并吡喃-2-羧酸和相关化合物作为白三烯拮抗剂。

  摘要：

  对与标准肽基白三烯拮抗剂FPL 55712（1）中存在的2-羟基苯乙酮药效团相连的一系列3,4-二氢-2H-1-苯并吡喃-2-羧酸的评估导致发现Ro 23-3544（ 7），与LTD4相比，具有比标准品更大的效力和作用持续时间的拮抗剂（气雾剂给药途径，豚鼠支气管收缩模型）。有趣的是，该化合物还有效抑制了LTB4诱导的支气管收缩，而1则没有。试图建立结构-活性关系的尝试涉及对2-羟基苯乙酮部分，连接链和色氨酸系统的修饰。所有变体产生的类似物相对于酸7都是无活性的或具有降低的效能，通过两种方法可实现7的光学拆分。对映体的绝对构型是通过对S对映体的中间体及其盐的X射线晶体学分析确定的。尽管对映异构体在静脉内给药时在体外试验和体内均显示出相似的效力，但通过气雾剂途径给药时，豚鼠支气管收缩模型与LTC4和LTD4相比有显着差异（S肽的效力高15倍）。已经将7的特性与最近报道的几种白三烯拮抗剂进行了比

  DOI：

  10.1021/jm00128a028

文献信息

• Leukotriene antagonists for use in the treatment or prevention of alzheimer's disease
  申请人：ELI LILLY AND COMPANY

  公开号：EP0743064A1

  公开（公告）日：1996-11-20

  This invention provides methods for the treatment or prevention of Alzheimer's disease which comprises administering to a mammal in need thereof an effective amount of a compound having activity as a leukotriene antagonist.

  这项发明提供了治疗或预防阿尔茨海默病的方法，包括向需要的哺乳动物施用具有白三烯拮抗活性的化合物的有效量。
• [EN] USE OF PLA2 INHIBITORS AS TREATMENT FOR ALZHEIMER'S DISEASE<br/>[FR] UTILISATION D'INHIBITEURS DE PLA2 POUR TRAITER LA MALADIE D'ALZHEIMER
  申请人：ELI LILLY AND COMPANY

  公开号：WO1995017183A1

  公开（公告）日：1995-06-29

  (EN) This invention provides methods for the treatment or prevention of Alzheimer's disease in a mammal which comprises administering to a mammal in need thereof an effective amount of an inhibitor of phospholipase A2. This invention also provides a series of compounds which are useful as inhibitors of phospholipases A2, especially cytosolic phospholipase A2.(FR) L'invention se rapporte à des procédés de traitement ou de prévention de la maladie d'Alzheimer chez un mammifère, ce procédé consistant à administrer à un mammifère nécessitant un tel traitement une dose efficace d'un inhibiteur de phospholipase A2 (PLA2). L'invention se rapporte également à une série de composés aptes à être utilisés comme inhibiteurs de phospholipases A2, en particulier de la phospholipase A2 cytosolique.

  该发明提供了一种治疗或预防哺乳动物阿尔茨海默病的方法，该方法包括向需要治疗的哺乳动物施用有效量的磷脂酶A2抑制剂。该发明还提供了一系列化合物，这些化合物可用作磷脂酶A2的抑制剂，特别是细胞质磷脂酶A2。
• Substituted phenyl phenol leukotriene antagonists
  申请人：ELI LILLY AND COMPANY

  公开号：EP0544488A2

  公开（公告）日：1993-06-02

  Antagonists having a substituted phenyl phenol or a substituted phenolic biphenyl structure, and various derivatives thereof, are specific leukotriene antagonists.

  具有取代苯基苯酚或取代苯基联苯结构的拮抗剂及其各种衍生物是特异性白三烯拮抗剂。
• Synthetic and Structure/Activity Studies on Acid-Substituted 2-Arylphenols: Discovery of 2-[2-Propyl-3-[3-[2-ethyl-4-(4-fluorophenyl)-5-hydroxyphenoxy]- propoxy]phenoxy]benzoic Acid, a High-Affinity Leukotriene B4 Receptor Antagonist
  作者：J. Scott Sawyer、Nicholas J. Bach、S. Richard Baker、Ronald F. Baldwin、Peter S. Borromeo、Sandra L. Cockerham、Jerome H. Fleisch、Paul Floreancig、Larry L. Froelich

  DOI：10.1021/jm00022a006

  日期：1995.10

  Structural derivatives of LY255283 have been studied as receptor antagonists of leukotriene B-4. Substitution of the 2-hydroxyacetophenone subunit of 1 (LY255283) with a 2-arylphenol group provided entry into several new series that feature various mono- and diacidic core functionality. These new analogues, the subject of a broad structure-activity investigation, displayed significantly increased in vitro and in vivo activity as receptor antagonists of LTB(4). A series of diaryl ether carboxylic acids demonstrated especially interesting activity and led to the discovery of compound 43b, 2-[2-propyl-3-[3-[2-ethyl-4-(4-fluorophenyl)-5-hydroxyphenoxy]- propoxy]phenoxy]benzoic acid (LY293111), a 2-arylphenol-substituted diaryl ether carboxylic acid which displayed potent binding to human neutrophils (IC50 = 17 +/- 14.6 nM) and guinea pig lung membranes (IC50 6.6 +/- 0.71 nM), inhibition of LTB(4)-induced expression of the CD11b/CD18 receptor on human neutrophils (IC50 - 3.3 +/- 0.81 nM), and inhibition of LTB(4)-induced contraction of guinea pig lung parenchyma (pK(B) = 8.7 +/- 0.16). In vivo, 43b demonstrated potent activity in inhibiting LTB(4)-induced airway obstruction in the guinea pig when dosed by the oral (ED(50) = 0.40 mg/kg) or intravenous (ED(50) = 0.014 mg/kg) routes. A specific LTB(4) receptor antagonist, 43b had little effect on inhibiting contractions of guinea pig lung parenchyma induced by leukotriene D-4 (LTD(4)), histamine, carbachol, or U46619. Compound 43b has been chosen as a clinical candidate and is currently in phase I studies for a variety of inflammatory diseases.
• Leukotriene B4 (LTB4) Receptor Antagonists: A Series of (Hydroxyphenyl)pyrazoles
  作者：Richard W. Harper、William T. Jackson、Larry L. Froelich、Robert J. Boyd、Timothy E. Aldridge、David K. Herron

  DOI：10.1021/jm00041a021

  日期：1994.7

  A series of (hydroxyphenyl)pyrazoles was designed by molecular modeling comparison with the LTB(4) structure and prepared for evaluation as LTB(4) receptor antagonists, culminating in 4-ethyl-5-[[6-methyl-6-(1H-tetrazol-5-yl)heptyl]oxy]-2-(1H-pyrazol-3-yl)phenyl (2). Using an assay for inhibition of specific [H-3]LTB(4) binding to human PMN, it was found that the pyrazole ring could be methylated at N(1) with little loss of activity while methylation at N(2) reduced activity significantly. The structure-activity relationship of the terminal acid group was investigated. Good activity was found with o- and m-phenylalkanoic acids, chromane carboxylic acid, and tetrazole groups. The best in vitro activity was realized with the pyrazole nitrogen unsubstituted and with a six-carbon chain linking the phenyl ether oxygen to the tetrazole group. Compound 2, having an IC50 of 6.4 +/- 0.8 nM in the binding assay, was selected for further preclinical evaluation.