5-acetyl-2-ethyl-4-dimethylthiazole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 5-acetyl-2-ethyl-4-dimethylthiazole
• 英文别名: 1-(2-Ethyl-4-methyl-1,3-thiazol-5-yl)ethan-1-one；1-(2-ethyl-4-methyl-1,3-thiazol-5-yl)ethanone
• 化学式: C₈H₁₁NOS
• mdl: MFCD14587879
• 分子量: 169.247
• InChiKey: LEIFXYKPCKGAQW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  58.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-acetyl-2-ethyl-4-dimethylthiazole 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 以92%的产率得到1-(2-ethyl-4-methylthiazol-5-yl)ethan-1-ol
  参考文献：
  名称：

  基于 5-酰基噻唑骨架的构建块库的通用方法

  摘要：

  摘要 噻唑衍生物是一类重要的唑类杂环，具有广泛的生物活性，因此，这些化合物的合成备受关注。我们在此介绍了一些实用且可靠的合成一些 5-酰基噻唑的方案，并展示了它们在通过 5-酰基功能的转化制备几个新系列的含噻唑结构单元中的效用。具体而言，噻唑基醇、肟、伯胺和仲胺以良好到极好的收率连续合成。所得化合物的化学结构经 1H 和 13C NMR 光谱、元素分析和质谱证实。图形概要

  DOI：

  10.1080/00397911.2020.1808224
• 作为产物：
  描述：

  硫代丙酰胺 、 3-氯-2,4-戊二酮 在 sodium carbonate 作用下， 以 乙醇 、 氯仿 、 水 为溶剂， 反应 1.0h， 以74%的产率得到5-acetyl-2-ethyl-4-dimethylthiazole
  参考文献：
  名称：

  基于 5-酰基噻唑骨架的构建块库的通用方法

  摘要：

  摘要 噻唑衍生物是一类重要的唑类杂环，具有广泛的生物活性，因此，这些化合物的合成备受关注。我们在此介绍了一些实用且可靠的合成一些 5-酰基噻唑的方案，并展示了它们在通过 5-酰基功能的转化制备几个新系列的含噻唑结构单元中的效用。具体而言，噻唑基醇、肟、伯胺和仲胺以良好到极好的收率连续合成。所得化合物的化学结构经 1H 和 13C NMR 光谱、元素分析和质谱证实。图形概要

  DOI：

  10.1080/00397911.2020.1808224

文献信息

• OPIOID RECEPTOR MODULATORS AND USE THEREOF
  申请人：National Health Research Institutes

  公开号：US20170056377A1

  公开（公告）日：2017-03-02

  Disclosed is an in vitro screening method for identifying an antagonist-to-agonist allosteric modifier of a mu-opioid receptor and an in vivo method for confirming that a test compound is such a modifier of a mu-opioid receptor. Also disclosed is a method for treating an opioid receptor-associated condition using a compound of Formula (I) and a pharmaceutical composition containing the same.

  揭示了一种体外筛选方法，用于识别μ-阿片受体的拮抗剂-激动剂异位调节剂，并揭示了一种体内方法，用于确认测试化合物是否为μ-阿片受体的这种调节剂。还揭示了一种使用式（I）化合物和含有该化合物的药物组合物治疗阿片受体相关疾病的方法。
• Design of Potent and Druglike Nonphenolic Inhibitors for Catechol <i>O</i>-Methyltransferase Derived from a Fragment Screening Approach Targeting the <i>S</i>-Adenosyl-<scp>l</scp>-methionine Pocket
  作者：Christian Lerner、Roland Jakob-Roetne、Bernd Buettelmann、Andreas Ehler、Markus Rudolph、Rosa María Rodríguez Sarmiento

  DOI：10.1021/acs.jmedchem.6b00927

  日期：2016.11.23

  A fragment screening approach designed to target specifically the S-adenosyl-l-methionine pocket of catechol O-methyl transferase allowed the identification of structurally related fragments of high ligand efficiency and with activity on the described orthogonal assays. By use of a reliable enzymatic assay together with X-ray crystallography as guidance, a series of fragment modifications revealed an

  专门针对儿茶酚O的S-腺苷-1-蛋氨酸口袋设计的片段筛选方法-甲基转移酶可以鉴定具有高配体效率的结构相关片段，并且对所述正交试验具有活性。通过将可靠的酶促测定与X射线晶体学一起用作指导，一系列片段修饰揭示了SAR，经过几次扩展后，可以获得有效的先导化合物。首次报道了非酚类和小的低纳摩尔浓度的强效SAM竞争性COMT抑制剂。这些化合物代表了一系列新的有效COMT抑制剂，这些抑制剂可能会进一步优化用于治疗帕金森氏病，左旋多巴治疗或精神分裂症的辅助药物。
• AROMATIC 5-MEMBERED HETEROCYCLIC DERIVATIVE HAVING TRPV4-INHIBITING ACTIVITY
  申请人：Shionogi & Co., Ltd.

  公开号：US20150038483A1

  公开（公告）日：2015-02-05

  The present invention is related to a compound represented by formula (I) wherein R 1 is a hydrogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted aromatic carbocyclyl, or the like; X is —N(R 3 )—, —O—, or —S—; Y is ═C(R 4 )—, or ═N—; Z is —N(R 7 )—, —O—, or —S—; R 2 is substituted or unsubstituted alkyloxy, or the like, or a group represented by the following formula: —(CR 2a R 2b ) n —R 2c , wherein R 2a is each independently a hydrogen atom, halogen, or the like; R 2b is each independently a hydrogen atom, halogen, or the like; R 2a and R 2b which are attached to the same carbon atom may be taken together to form oxo, a substituted or unsubstituted non-aromatic carbocycle, or the like; two of R 2a which are attached to the adjacent carbon atoms and/or two of R 2b which are attached to the adjacent carbon atoms may be taken together to form a bond; R 2c is substituted or unsubstituted aromatic carbocyclyl, or the like; n is an integer from 1 to 3; R 3 and R 7 are each independently a hydrogen atom, substituted or unsubstituted alkyl, or the like; R 4 and R 5 are each independently a hydrogen atom, halogen, substituted or unsubstituted alkyl, or the like; R 6 is a hydrogen atom, halogen, substituted or unsubstituted alkyl, or the like, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising thereof.

  本发明涉及一种由式（I）表示的化合物，其中R1是氢原子，取代或未取代的烷基，取代或未取代的芳香环烷基等；X是—N(R3)—，—O—或—S—；Y是═C(R4)—或═N—；Z是—N(R7)—，—O—或—S—；R2是取代或未取代的烷氧基等，或以下式表示的基团：—(CR2aR2b)n—R2c，其中R2a分别是氢原子，卤素等；R2b分别是氢原子，卤素等；附在同一碳原子上的R2a和R2b可以共同形成氧化物，取代或未取代的非芳香环烷基等；附在相邻碳原子上的两个R2a和/或附在相邻碳原子上的两个R2b可以共同形成键；R2c是取代或未取代的芳香环烷基等；n是1到3的整数；R3和R7分别是氢原子，取代或未取代的烷基等；R4和R5分别是氢原子，卤素，取代或未取代的烷基等；R6是氢原子，卤素，取代或未取代的烷基等，或其药学上可接受的盐，或包含其的药物组合物。
• The in vivo antinociceptive and μ-opioid receptor activating effects of the combination of N-phenyl-2′,4′-dimethyl-4,5′-bi-1,3-thiazol-2-amines and naloxone
  作者：Shu-Yu Lin、Yu-Hsien Kuo、Ya-Wen Tien、Yi-Yu Ke、Wan-Ting Chang、Hsiao-Fu Chang、Li-Chin Ou、Ping-Yee Law、Jing-Hua Xi、Pao-Luh Tao、Horace H. Loh、Yu-Sheng Chao、Chuan Shih、Chiung-Tong Chen、Shiu-Hwa Yeh、Shau-Hua Ueng

  DOI：10.1016/j.ejmech.2019.01.063

  日期：2019.4

  Morphine is widely used for the treatment of severe pain. This analgesic effect is mediated principally by the activation of-opioid receptors (MOR). However, prolonged activation of MOR also results in tolerance, dependence, addiction, constipation, nausea, sedation, and respiratory depression. To address this problem, we sought alternative ways to activate MOR - either by use of novel ligands, or via a novel activation mechanism. To this end, a series of compounds were screened using a sensitive CHO-Kl/MOR/G alpha l 5 cell-based FLIPR (R) calcium high-throughput screening (HTS) assay, and the bithiazole compound 5a was identified as being able activate MOR in combination with naloxone. Structural modifications of 5a resulted in the discovery of lead compound 5j, which could effectively activate MOR in combination with the MOR antagonist naloxone or naltrexone. In vivo, naloxone in combination with 100 mg/kg of compound 5j elicited antinociception in a mouse tail-flick model with an ED50 of 17.5 +/- 4 mg/kg. These results strongly suggest that the mechanism by which the 5j/naloxone combination activates MOR is worthy of further study, as its discovery has the potential to yield an entirely novel class of analgesics. (C) 2019 Elsevier Masson SAS. All rights reserved.
• US9499533B2
  申请人：——

  公开号：US9499533B2

  公开（公告）日：2016-11-22