7-methyl-benzooxazole-2-thiol | 93794-43-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶唑类
• 英文名称: 7-methyl-benzooxazole-2-thiol
• 英文别名: 7-methylbenzooxazole-2-thiol；7-methyl-2-benzoxazolethiol；2-mercapto-7-methylbenzoxazole；7-methyl-3H-1,3-benzoxazole-2-thione
• CAS: 93794-43-5
• 化学式: C₈H₇NOS
• 分子量: 165.216
• InChiKey: USBRJDJLXDPNEQ-UHFFFAOYSA-N

物化性质

• 沸点：
  266.4±33.0 °C(Predicted)
• 密度：
  1.34±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  53.4
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  7-methyl-benzooxazole-2-thiol 在 五氯化磷 、 一水合肼 作用下， 以 1,4-二氧六环 、 苯 为溶剂， 反应 2.5h， 生成 (7-Methyl-1,3-benzoxazol-2-yl)hydrazine
  参考文献：
  名称：

  3-[1-(2-Benzoxazolyl)hydrazino]propanenitrile derivatives: inhibitors of immune complex induced inflammation

  摘要：

  3-[1-(2-Benzoxazolyl)hydrazino]propanenitrile derivatives were evaluated in the dermal and pleural reverse passive Arthus reactions in the rat. In the pleural test these compounds were effective in reducing exudate volume and accumulation of white blood cells. This pattern of activity was similar to that of hydrocortisone and different from that of indomethacin. The structural requirements for inhibiting the Arthus reactions were studied by systematic chemical modification of 1. These structure-activity relationship studies revealed that nitrogen 1' of the hydrazino group is essential for activity and must be electron rich, whereas chemical modifications of other sites of 1 had only a modest effect on activity.

  DOI：

  10.1021/jm00117a010
• 作为产物：
  描述：

  2-甲基-6-硝基苯酚 在 palladium on activated charcoal 氢氧化钾 、 氢气 作用下， 以 乙醇 为溶剂， 反应 32.0h， 生成 7-methyl-benzooxazole-2-thiol
  参考文献：
  名称：

  Benzoxazole Derivatives as Novel 5-HT₃ Receptor Partial Agonists in the Gut

  摘要：

  A series of benzoxazoles with a nitrogen-containing heterocyclic substituent at the 2-position was prepared and evaluated for 5-HT3 partial agonist activity on isolated guinea pig ileum. The nature of the substituent at the 5-position of the benzoxazole ring affected the potency for the 5-HT3 receptor, and the 5-chloro derivatives showed increased potency and lowered intrinsic activity. 5-Chloro-7-methyl-2-(4-methyl-1-homopiperazinyl)benzoxazole (6v) exhibited a high binding affinity in the same range as that of the 5-HT3 antagonist granisetron, and its intrinsic activity was 12% of that of 5-HT. Compound 6v inhibited 5-HT-evoked diarrhea but did not prolong the transition time of glass beads in the normal distal colon even at a dose of 100 times the ED50 for diarrhea inhibition in mice. Compounds of this type are expected to be effective for the treatment of irritable bowel syndrome without the side effect of constipation.

  DOI：

  10.1021/jm9801004

文献信息

• An environmentally benign and efficient synthesis of substituted benzothiazole-2-thiols, benzoxazole-2-thiols, and benzimidazoline-2-thiones in water
  作者：Xing Liu、Min Liu、Wan Xu、Meng-Tian Zeng、Hui Zhu、Cai-Zhu Chang、Zhi-Bing Dong

  DOI：10.1039/c7gc02311a

  日期：——

  An efficient and practical method for the one-step synthesis of benzothiazole-2-thiols, benzoxazole-2-thiols and benzimidazoline-2-thiones by cyclization of 2-aminothiophenols, 2-aminophenols, and 1,2-phenylenediamines with tetramethylthiuram disulfide (TMTD) in water was described. The features of this method include metal/ligand-free, excellent yield, short reaction time and broad substrate scope

  一种有效而实用的方法，是通过将2-氨基硫酚，2-氨基酚和1,2-苯二胺与四甲基秋兰姆二硫化物环化，一步一步合成苯并噻唑-2-硫醇，苯并恶唑-2-硫醇和苯并咪唑啉-2-硫酮（描述了在水中的TMTD。该方法的特点包括无金属/配体，优异的产率，较短的反应时间和广泛的底物范围。该方法提供了一些潜在的生物活性化合物的简便的制备方法。
• Selective synthesis of 2-aminobenzoxazoles and 2-mercaptobenzoxazoles by using o-aminophenols as starting material
  作者：Min Liu、Meng-Tian Zeng、Wan Xu、Li Wu、Zhi-Bing Dong

  DOI：10.1016/j.tetlet.2017.09.092

  日期：2017.11

  dithiocarbamates and tetramethylthiuram disulfide (TMTD), respectively. With the promotion of NaH/CuI, the reaction of o-aminophenols with dithiocarbamates gave 2-aminobenzoxazoles with good yield (70–92%) in one pot manner, and 2-mercaptobenzoxazoles were synthesized (yield: 55–80%) in the presence of K2CO3 by treating o-aminophenols with tetramethylthiuram disulfide (TMTD). The feature of this method

  通过分别用二硫代氨基甲酸酯和四甲基秋兰姆二硫化物（TMTD）处理邻氨基苯酚来选择性合成2-氨基苯并恶唑和2-巯基苯并恶唑。随着NaH / CuI的促进，邻氨基苯酚与二硫代氨基甲酸酯的反应可以一锅法得到2-氨基苯并恶唑，收率良好（70-92％），而合成2-巯基苯并恶唑（收率：55-80％）。通过用二甲基四甲基秋兰姆（TMTD）处理邻氨基苯酚来获得K 2 CO 3的存在。该方法的特征包括良好到极好的收率，容易的操作和广泛的底物范围，这使得该方案在制备某些潜在的药物活性化合物中具有实用性和吸引力。
• AlCl₃ -Promoted Synthesis of 2-Mercapto Benzoheterocycles by Using Sodium Dimethyldithiocarbamate as Thiocarbonyl Surrogate
  作者：Xing Liu、Shi-Bo Zhang、Zhi-Bing Dong

  DOI：10.1002/ejoc.201800993

  日期：2018.10.24

  AlCl3-mediated one-pot preparation of 2-mercapto benzoheterocycles (2-mercapto benzothiazoles, benzoxazoles and benzimidazoles) is described. By the treatment of a series of S, O and N heteroatoms containing bifunctional molecules with sodium dimethyldithiocarbamate in AlCl3, the desired benzoheterocycles are obtained smoothly. The protocol can also be applied on the synthesis of a series of thiazolidine-2-thiones

  描述了一种简单、快速和高效的合成方法，用于 AlCl3 介导的 2-巯基苯并杂环（2-巯基苯并噻唑、苯并恶唑和苯并咪唑）的一锅制备。通过在 AlCl3 中用二甲基二硫代氨基甲酸钠处理一系列含有 S、O 和 N 杂原子的双官能分子，可以顺利地获得所需的苯并杂环。该协议还可以应用于一系列 thiazolidine-2-thiones、imidazolidine-2-thiones 的合成。这种新型合成方法具有无配体、效率高、反应时间短、原料易得、实验步骤简单等优点。
• Serotonin 5-HT, receptor partial activator
  申请人：——

  公开号：US20010016579A1

  公开（公告）日：2001-08-23

  This invention provides a serotonin 5-HT 3 receptor partial activator which has a serotonin 5-HT 3 receptor activating action, in addition to its serotonin 5-HT 3 receptor antagonism, and does not cause constipation as a side effect. Particularly, based on the finding that newly synthesized benzoxazole derivatives typified by the compounds of the following formula (2) have strong serotonin 5-HT 3 receptor antagonism and serotonin 5-HT 3 receptor activating action, this invention provides these benzoxazole derivatives as serotonin 5-HT 3 receptor partial activators. 1 In the above formula, R 1 to R 4 may be the same or different from one another and each represents a hydrogen atom, a halogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted lower alkenyl group or a substituted or unsubstituted amino group, or two groups of R 1 and R 2 may be linked together to form a ring structure, namely benzene ring; R 5 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group or a substituted or unsubstituted lower alkenyl group; and m is an integer of 1 to 4.

  本发明提供了一种5-HT3受体部分激动剂，该激动剂具有5-HT3受体激活作用，除了其5-HT3受体拮抗作用外，不会引起便秘等副作用。特别是，基于新合成的苯并咪唑衍生物发现，该衍生物以以下式子（2）的化合物为代表具有强烈的5-HT3受体拮抗作用和5-HT3受体激活作用，本发明提供这些苯并咪唑衍生物作为5-HT3受体部分激动剂。在上述公式中，R1到R4可以相同也可以不同，每个表示氢原子、卤素原子、取代或未取代的低级烷基、取代或未取代的低级烯基或取代或未取代的氨基；或R1和R2的两个基团可以连接在一起形成环结构，即苯环；R5表示氢原子、取代或未取代的低级烷基或取代或未取代的低级烯基；m是1到4的整数。
• Serotonin 5-HT3 receptor partial activator
  申请人：MEIJI SEIKA KAISHA, LTD.

  公开号：US20030013730A1

  公开（公告）日：2003-01-16

  This invention provides a serotonin 5-HT 3 receptor partial activator which has a serotonin 5-HT 3 receptor activating action, in addition to its serotonin 5-HT 3 receptor antagonism, and does not cause constipation as a side effect. Particularly, based on the finding that newly synthesized benzoxazole derivatives typified by the compounds of the following formula (2) have strong serotonin 5-HT 3 receptor antagonism and serotonin 5-HT 3 receptor activating action, this invention provides these benzoxazole derivatives as serotonin 5-HT 3 receptor partial activators. 1 In the above formula, R 1 to R 4 may be the same or different from one another and each represents a hydrogen atom, a halogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted lower alkenyl group or a substituted or unsubstituted amino group, or two groups of R 1 and R 2 may be linked together to form a ring structure, namely benzene ring; R 5 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group or a substituted or unsubstituted lower alkenyl group; and m is an integer of 1 to 4.

  该发明提供了一种5-HT3受体部分激动剂，具有5-HT3受体激活作用，除了5-HT3受体拮抗作用外，不会引起便秘等副作用。特别地，基于新合成的苯并噁唑衍生物的发现，该衍生物以以下公式（2）的化合物为代表，具有强烈的5-HT3受体拮抗作用和5-HT3受体激活作用，该发明提供这些苯并噁唑衍生物作为5-HT3受体部分激动剂。在上述公式中，R1至R4可以相同或不同，每个代表氢原子、卤素原子、取代或未取代的低级烷基、取代或未取代的低级烯基或取代或未取代的氨基，或R1和R2的两个基团可以连接在一起形成环结构，即苯环；R5代表氢原子、取代或未取代的低级烷基或取代或未取代的低级烯基；m是1到4的整数。