ethyl 2-(3-(2-chloroethyl)ureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate | 126080-24-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 英文名称: ethyl 2-(3-(2-chloroethyl)ureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate
• 英文别名: 2-[[[(2-Chloroethyl)amino]carbonyl]amino]-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid ethyl ester；ethyl 2-(2-chloroethylcarbamoylamino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
• CAS: 126080-24-8
• 化学式: C₁₄H₁₉ClN₂O₃S
• 分子量: 330.835
• InChiKey: IJNJIRAKKHYKFX-UHFFFAOYSA-N

物化性质

• 沸点：
  486.9±45.0 °C(Predicted)
• 密度：
  1.323±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  95.7
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 2-(3-(2-chloroethyl)ureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate 在 sodium hydroxide 作用下， 以 1,4-二氧六环 为溶剂， 反应 0.25h， 以20%的产率得到2,3,5,6,7,8-Hexahydro-1-oxa-9-thia-3a,10-diaza-cyclopenta[b]fluoren-4-one
  参考文献：
  名称：

  Condensed thienopyrimidines. I. Synthesis and gastric antisecretory activity of 2,3-dihydro-5H-oxazolothienopyrimidin-5-one derivatives.

  摘要：

  一种实用的方法被开发用于合成多种2, 3-二氢-5H-噁唑并噻吩的[3, 2-a]、[3, 4-d]和[2, 3-d]嘧啶-5-酮衍生物，该过程从相应的氨基噻吩酯出发，仅需两步，并且其氯取代衍生物也被合成。这些化合物在幽门结扎大鼠中评估了其抗胃分泌活性，并与抗溃疡标准药物西咪替丁进行了比较，同时讨论了它们的结构-活性关系。

  DOI：

  10.1248/cpb.37.2091
• 作为产物：
  描述：

  氰乙酸乙酯 在 N-乙基吗啉 、 sulfur 作用下， 以 乙醇 、 甲苯 为溶剂， 反应 6.0h， 生成 ethyl 2-(3-(2-chloroethyl)ureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate
  参考文献：
  名称：

  Design, Synthesis, and X-ray Analysis of a Glycoconjugate Bound to Mycobacterium tuberculosis Antigen 85C

  摘要：

  Tuberculosis (TB) is a global health threat with nearly 500 000 new cases of multidrug-resistant TB estimated to occur every year, so new drugs are desperately needed. A number of current antimycobacterial drugs work by interfering with the biosynthesis of key components of the mycolylar-abinogalactan (mAG). In light of this observation, other enzymes involved in the synthesis of the mAG should also serve as targets for antimycobacterial drug development. One potential target is the Antigen 85 (Ag85) complex, a family of mycolyltransferases that are responsible for the transfer of mycolic acids from trehalose monomycolate (TMM) to the arabinogalactan. Virtual thiophenyl arabinoside conjugates were docked to antigen Ag85C (PDB code: 1va5) using Glide. Compounds with good docking scores were synthesized by a Gewald synthesis followed by linking to 5-thioarabinofuranosides. The resulting thiophenyl-thioarabinofuranosides were assayed for inhibition of mycoyltransferase activity using a 4-methylumbelliferyl butyrate fluorescence assay. The conjugates showed K-i values ranging from 18.2 to 71.0 mu M. The most potent inhibitor was soaked into crystals of Mycobacterium tuberculosis antigen 85C and the structure of the complex determined. The X-ray structure shows the compound bound within the active site of the enzyme with the thiophene moiety positioned in the putative alpha-chain binding site of TMM and the arabinofuranoside moiety within the known carbohydrate-binding site as exhibited for the Ag85B-trehalose crystal structure. Unexpectedly, no specific hydrogen bonding interactions are being formed between the arabinofuranoside and the carbohydrate-binding site of the active site suggesting that the binding of the arabinoside within this structure is driven by shape complementarily between the arabinosyl moiety and the carbohydrate binding site.

  DOI：

  10.1021/bc3004342

文献信息

• Condensed thienopyrimidines. I. Synthesis and gastric antisecretory activity of 2,3-dihydro-5H-oxazolothienopyrimidin-5-one derivatives.
  作者：Mitsuo SUGIYAMA、Toshiaki SAKAMOTO、Keiichi TABATA、Kazuo ENDO、Keiichi ITO、Mitsuko KOBAYASHI、Hiroshi FUKUMI

  DOI：10.1248/cpb.37.2091

  日期：——

  A practical preparation of various 2, 3-dihydro-5H-oxazolo[3, 2-a]thieno[3, 2-d]-, [3, 4-d]-, and [2, 3-d]pyrimidin-5-one derivatives was developed starting from the corresponding aminothiopheneesters in two steps, and their chloro-substituted derivatives were prepared. These compounds were evaluated for gastric antisecretory activity in pylorus-ligated rats, compared to the anti-ulcer standard, cimetidine, and their structure-activity relationships are discussed.

  一种实用的方法被开发用于合成多种2, 3-二氢-5H-噁唑并噻吩的[3, 2-a]、[3, 4-d]和[2, 3-d]嘧啶-5-酮衍生物，该过程从相应的氨基噻吩酯出发，仅需两步，并且其氯取代衍生物也被合成。这些化合物在幽门结扎大鼠中评估了其抗胃分泌活性，并与抗溃疡标准药物西咪替丁进行了比较，同时讨论了它们的结构-活性关系。
• Design, Synthesis, and X-ray Analysis of a Glycoconjugate Bound to Mycobacterium tuberculosis Antigen 85C
  作者：Diaa A. Ibrahim、Julie Boucau、Daniel H. Lajiness、Sri Kumar Veleti、Kevin R. Trabbic、Samuel S. Adams、Donald R. Ronning、Steven J. Sucheck

  DOI：10.1021/bc3004342

  日期：2012.12.19

  Tuberculosis (TB) is a global health threat with nearly 500 000 new cases of multidrug-resistant TB estimated to occur every year, so new drugs are desperately needed. A number of current antimycobacterial drugs work by interfering with the biosynthesis of key components of the mycolylar-abinogalactan (mAG). In light of this observation, other enzymes involved in the synthesis of the mAG should also serve as targets for antimycobacterial drug development. One potential target is the Antigen 85 (Ag85) complex, a family of mycolyltransferases that are responsible for the transfer of mycolic acids from trehalose monomycolate (TMM) to the arabinogalactan. Virtual thiophenyl arabinoside conjugates were docked to antigen Ag85C (PDB code: 1va5) using Glide. Compounds with good docking scores were synthesized by a Gewald synthesis followed by linking to 5-thioarabinofuranosides. The resulting thiophenyl-thioarabinofuranosides were assayed for inhibition of mycoyltransferase activity using a 4-methylumbelliferyl butyrate fluorescence assay. The conjugates showed K-i values ranging from 18.2 to 71.0 mu M. The most potent inhibitor was soaked into crystals of Mycobacterium tuberculosis antigen 85C and the structure of the complex determined. The X-ray structure shows the compound bound within the active site of the enzyme with the thiophene moiety positioned in the putative alpha-chain binding site of TMM and the arabinofuranoside moiety within the known carbohydrate-binding site as exhibited for the Ag85B-trehalose crystal structure. Unexpectedly, no specific hydrogen bonding interactions are being formed between the arabinofuranoside and the carbohydrate-binding site of the active site suggesting that the binding of the arabinoside within this structure is driven by shape complementarily between the arabinosyl moiety and the carbohydrate binding site.