6-Benzyloxy-4-oxo-4H-chromen-3-carboxylic acid | 203919-26-0

• 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: 6-Benzyloxy-4-oxo-4H-chromen-3-carboxylic acid
• 英文别名: 4-Oxo-6-phenylmethoxychromene-3-carboxylic acid
• CAS: 203919-26-0
• 化学式: C₁₇H₁₂O₅
• 分子量: 296.279
• InChiKey: MVGANULHWUOHKA-UHFFFAOYSA-N

物化性质

• 沸点：
  493.7±45.0 °C(Predicted)
• 密度：
  1.397±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  6-Benzyloxy-4-oxo-4H-chromen-3-carboxylic acid 在 copper(l) iodide 、 草酰氯 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 2.5h， 生成
  参考文献：
  名称：

  Structure−Activity Relationships of a Novel Class of Endothelin-A Receptor Antagonists and Discovery of Potent and Selective Receptor Antagonist, 2-(Benzo[1,3]dioxol-5-yl)-6-isopropyloxy-4-(4-methoxyphenyl)-2H-chromene-3- carboxylic Acid (S-1255). 1. Study on Structure−Activity Relationships and Basic Structure Crucial for ET_A Antagonism

  摘要：

  A novel series of endothelin-A (ETA) selective receptor antagonists having a 2H-chromene skeleton are described. A lead compound, 2-(benzo[1,3]dioxol-5-yl)-2H-chromene-3-carboxylic acid (3), was found by modifications of our own angiotensin II antagonist. A structure-activity relationship (SAR) study of 3 reveals that the structural requirements essential for potent and selective ETA receptor binding affinity are the m,p-methylenedioxyphenyl, carboxyl, and isopropoxy groups at the 2-, 3-, and 6-positions, respectively, on the (R)-2H-chromene skeleton. The substituent at the 4-position is also important for improving the activity, and various hydrophobic functional groups of 6-9 Angstrom such as liner, branched, and cyclic aliphatic groups, unsubstituted and substituted aryl groups, and even halogen atoms were acceptable. These results suggest that (R)-2-(benzo[1,3]dioxol-5-yl)-6-isopropoxy-2H-chromene-3-carboxylic acid, formula 108, is the crucial basic structure to be recognized by the ETA receptor. The most potent compound is (R)-48 (S-1255), which binds to the ETA receptor with an IC50 value of 0.19 nM and is 630-fold selective for the ETA receptor than for the ETB receptor. This compound has 55% oral bioavailability in rats. On the basis of the SAR, the roles of each substituent in the receptor binding are discussed.

  DOI：

  10.1021/jm010382z
• 作为产物：
  描述：

  2,5-二羟基苯乙酮 在 sodium chlorite 、 氨基磺酸 、 potassium carbonate 、 sodium iodide 、 三氯氧磷 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 24.5h， 生成 6-Benzyloxy-4-oxo-4H-chromen-3-carboxylic acid
  参考文献：
  名称：

  Structure−Activity Relationships of a Novel Class of Endothelin-A Receptor Antagonists and Discovery of Potent and Selective Receptor Antagonist, 2-(Benzo[1,3]dioxol-5-yl)-6-isopropyloxy-4-(4-methoxyphenyl)-2H-chromene-3- carboxylic Acid (S-1255). 1. Study on Structure−Activity Relationships and Basic Structure Crucial for ET_A Antagonism

  摘要：

  A novel series of endothelin-A (ETA) selective receptor antagonists having a 2H-chromene skeleton are described. A lead compound, 2-(benzo[1,3]dioxol-5-yl)-2H-chromene-3-carboxylic acid (3), was found by modifications of our own angiotensin II antagonist. A structure-activity relationship (SAR) study of 3 reveals that the structural requirements essential for potent and selective ETA receptor binding affinity are the m,p-methylenedioxyphenyl, carboxyl, and isopropoxy groups at the 2-, 3-, and 6-positions, respectively, on the (R)-2H-chromene skeleton. The substituent at the 4-position is also important for improving the activity, and various hydrophobic functional groups of 6-9 Angstrom such as liner, branched, and cyclic aliphatic groups, unsubstituted and substituted aryl groups, and even halogen atoms were acceptable. These results suggest that (R)-2-(benzo[1,3]dioxol-5-yl)-6-isopropoxy-2H-chromene-3-carboxylic acid, formula 108, is the crucial basic structure to be recognized by the ETA receptor. The most potent compound is (R)-48 (S-1255), which binds to the ETA receptor with an IC50 value of 0.19 nM and is 630-fold selective for the ETA receptor than for the ETB receptor. This compound has 55% oral bioavailability in rats. On the basis of the SAR, the roles of each substituent in the receptor binding are discussed.

  DOI：

  10.1021/jm010382z

文献信息

• Chromene-3-carboxylate derivatives
  申请人：Shionogi & Co., Ltd.

  公开号：US06218427B1

  公开（公告）日：2001-04-17

  The present invention provides a compound of the formula (I): wherein R1, R2, R3 and R4 are each independently hydrogen, optionally substituted alkyl, hydroxy, optionally substituted alkoxy or the like, R5 is optionally substituted alkyl, optionally substituted aryl, optionally substituted heterocyclic or the like, R6 is hydrogen, optionally substituted alkyl or the like, R7 is hydrogen, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted aryl, optionally substituted heterocyclic or the like, A is S or O and a broken line represents presence or absence of a bond, pharmaceutically acceptable salt or hydrate thereof and a pharmaceutical composition or a pharmaceutical composition for use as an endothelin receptor antagonist, a peripheral circulation insufficiency-improving agent or a macrophage foam cell formation inhibitor comprising the compound.

  本发明提供了一种化合物，其化学式为（I）： 其中R1、R2、R3和R4分别独立地为氢、可选择取代的烷基、羟基、可选择取代的烷氧基或类似物，R5为可选择取代的烷基、可选择取代的芳基、可选择取代的杂环基或类似物，R6为氢、可选择取代的烷基或类似物，R7为氢、可选择取代的烷基、可选择取代的烷氧基、可选择取代的芳基、可选择取代的杂环基或类似物，A为S或O，虚线表示键的存在或缺失，以及其药学上可接受的盐或水合物，以及包含该化合物的用作内皮素受体拮抗剂、外周循环不足改善剂或巨噬细胞泡沫细胞形成抑制剂的药物组合物或药物组合物。
• Chromone and donepezil hybrids as new multipotent cholinesterase and monoamine oxidase inhibitors for the potential treatment of Alzheimer's disease
  作者：Xiao-Bing Wang、Fu-Cheng Yin、Ming Huang、Neng Jiang、Jin-Shuai Lan、Ling-Yi Kong

  DOI：10.1039/c9md00441f

  日期：——

  simultaneously to peripheral and active sites of AChE. It was also a competitive inhibitor, which occupied the substrate and entrance cavities of MAO-B. Moreover, compound 5c could penetrate the blood–brain barrier (BBB) and showed low toxicity to rat pheochromocytoma (PC12) cells. Altogether, these results indicated that compound 5c might be a hopeful multitarget drug candidate with possible impact on Alzheimer's

  设计，合成并评估了一系列色酮和多奈哌齐杂化物，作为多能胆碱酯酶（ChE）和单胺氧化酶（MAO）抑制剂，可用于治疗阿尔茨海默氏病（AD）。体外研究表明，这些化合物中的绝大多数对BuChE和AChE表现出有效的抑制活性，并且对h MAO-B具有明显的选择性抑制作用。特别地，化合物5c呈现出对ChE抑制的最平衡的电位（BuChE：IC 50 = 5.24μM； AChE：IC 50 = 0.37μM）和h MAO-B选择性（IC 50 = 0.272μM，SI = 247）。分子建模和动力学研究表明5c是一种混合型抑制剂，可同时与AChE的外围和活性位点结合。它也是一种竞争性抑制剂，占据了MAO-B的底物和入口腔。此外，化合物5c可以穿透血脑屏障（BBB），并且对大鼠嗜铬细胞瘤（PC12）细胞显示出低毒性。总而言之，这些结果表明化合物5c可能是希望的多靶点候选药物，可能对阿尔茨海默氏病的治疗产生影响。
• CHROMENE-3-CARBOXYLATE DERIVATIVES
  申请人：SHIONOGI & CO., LTD.

  公开号：EP0924207A1

  公开（公告）日：1999-06-23

  The present invention provides a compound of the formula (I): wherein R1, R2, R3 and R4 are each independently hydrogen, optionally substituted alkyl, hydroxy, optionally substituted alkoxy or the like, R5 is optionally substituted alkyl, optionally substituted aryl, optionally substituted heterocyclic or the like, R6 is hydrogen, optionally substituted alkyl or the like, R7 is hydrogen, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted aryl, optionally substituted heterocyclic or the like, A is S or O and a broken line represents presence or absence of a bond, pharmaceutically acceptable salt or hydrate thereof and a pharmaceutical composition or a pharmaceutical composition for use as an endothelin receptor antagonist, a peripheral circulation insufficiency-improving agent or a macrophage foam cell formation inhibitor comprising the compound.

  本发明提供了式 (I) 的化合物： 其中 R1、R2、R3 和 R4 各自独立地是氢、任选取代的烷基、羟基、任选取代的烷氧基或类似物，R5 是任选取代的烷基、任选取代的芳基、任选取代的杂环或类似物，R6 是氢、任选取代的烷基或类似物，R7 是氢、任选取代的烷基、任选取代的烷氧基、任选取代的芳基、任选取代的杂环或类似物，A 是 S 或 O，断线表示存在或不存在键、 其药学上可接受的盐或水合物，以及包含该化合物的用作内皮素受体拮抗剂、外周循环不全改善剂或巨噬细胞泡沫形成抑制剂的药物组合物或药物组合物。
• US6218427B1
  申请人：——

  公开号：US6218427B1

  公开（公告）日：2001-04-17