4-Ethyl-1H-isochromene | 160734-05-4

• 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: 4-Ethyl-1H-isochromene
• CAS: 160734-05-4
• 化学式: C₁₁H₁₂O
• 分子量: 160.216
• InChiKey: MDYBVVPUOURLLI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-Ethyl-1H-isochromene 在 (8a,9R,8′′′a,9′′′R)-9,9′-[(2,5-diphenylpyrimidine-4,6-diyl)bis(oxy)]bis(6′-methoxy-10,11-dihydrocinchonan) 、 AD-mix-β 、 碘 、 calcium carbonate 作用下， 生成 (R)-4-Ethyl-4-hydroxy-isochroman-3-one 、 (S)-4-Ethyl-4-hydroxy-isochroman-3-one
  参考文献：
  名称：

  Synthesis of Optically Active .alpha.-Hydroxy Lactones by Sharpless Asymmetric Dihydroxylations of Ketene Acetals, Enol Ethers, and Ene Lactones

  摘要：

  Three different AD routes to optically active alpha-hydroxy lactones of good to excellent optical purity are reported. The substrates for the AD reaction are endocyclic ketene acetals, endocyclic enol ethers, and exocyclic alpha,beta-unsaturated lactones.

  DOI：

  10.1021/jo00100a005
• 作为产物：
  描述：

  4-Ethyl-isochroman-3-one 在 二异丁基氢化铝 、 甲基磺酰氯 作用下， 生成 4-Ethyl-1H-isochromene
  参考文献：
  名称：

  Synthesis of Optically Active .alpha.-Hydroxy Lactones by Sharpless Asymmetric Dihydroxylations of Ketene Acetals, Enol Ethers, and Ene Lactones

  摘要：

  Three different AD routes to optically active alpha-hydroxy lactones of good to excellent optical purity are reported. The substrates for the AD reaction are endocyclic ketene acetals, endocyclic enol ethers, and exocyclic alpha,beta-unsaturated lactones.

  DOI：

  10.1021/jo00100a005

文献信息

• Palladium(II) Acetate−Tris(triphenylphosphine)rhodium(I) Chloride:  A Novel Catalytic Couple for the Intramolecular Heck Reaction
  作者：Donald Bankston、Frank Fang、Edward Huie、Shiping Xie

  DOI：10.1021/jo982058q

  日期：1999.5.1

  drastically with those that were done only in the presence of palladium(II) acetate. Substitution of bis(triphenylphosphine)palladium(II) acetate for palladium(II) acetate provided an outcome that slightly favored the endocyclic form of the bicyclic ether, but when tris(triphenylphosphine)rhodium(I) chloride was added as a cocatalyst, the ratio clearly favored the exocyclic isomer.

  在由Jeffery最初描述的Heck条件下，在由三（三苯基膦）氯化铑（I）和乙酸钯（II）组成的新型催化对的作用下，一系列巴豆醚进行分子内环化。（1）数据表明与单独使用乙酸钯（II）相比，这两种金属催化剂的组合形成了一种协同相互作用，以更好的方式介导了分子内偶联。当将氯化三（三苯基膦）铑（I）添加到系统中时，通常观察到速率和对内环形式双环醚产物选择性的明显增加。此外，在涉及催化对的实验中，改变稀释度和初始锅温等参数似乎会显着影响速率和选择性，但与仅在乙酸钯（II）存在下进行的操作相比却没有那么彻底。用乙酸双（三苯膦）钯（II）代替乙酸钯（II）提供的结果稍微偏爱双环醚的内环形式，但是当添加氯化三（三苯基膦）铑（I）作为助催化剂时，该比率显然偏爱环外异构体。
• 2,3-Dihydro-6-nitroimidazo[2,1-b]oxazoles
  申请人：Tsubouchi Hidetsugu

  公开号：US20060094767A1

  公开（公告）日：2006-05-04

  The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: wherein R 1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R 2 represents a group —OR 3 or the like, and R 3 represents a hydrogen atom, C1-C6 alkyl group or the like, or R 1 and —(CH 2 ) n R 2 may bind to each other together with carbon atoms adjacent thereto through nitrogen atoms so as to form a spiro ring represented by the general formula (H): wherein R 41 is hydrogen, C1-C6 alkyl group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis , multi-drug-resistant Mycobacterium tuberculosis , and atypical acid-fast bacteria.

  本发明提供了一种2,3-二氢-6-硝基咪唑并[2,1-b]噁唑化合物，其通式如下：其中，R1代表氢原子或C1-C6烷基，n代表0到6的整数，R2代表—OR3或类似的基团，R3代表氢原子、C1-C6烷基或类似的基团，或者R1和—(CH2)nR2可以通过相邻的碳原子通过氮原子结合在一起形成一个螺环，其通式为（H）：其中，R41为氢、C1-C6烷基或类似的基团。该化合物对结核分枝杆菌、多药耐药结核分枝杆菌和非典型酸性快速细菌具有优异的杀菌作用。
• 2,3-DIHYDRO-6-NITROIMIDAZO 2,1-b OXAZOLES
  申请人：OTSUKA PHARMACEUTICAL CO., LTD.

  公开号：EP1555267A1

  公开（公告）日：2005-07-20

  The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: wherein R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R2 represents a group -OR3 or the like, and R3 represents a hydrogen atom, C1-C6 alkyl group or the like, or R1 and -(CH2)nR2 may bind to each other together with carbon atoms adjacent thereto through nitrogen atoms so as to form a spiro ring represented by the general formula (H): wherein R41 is hydrogen, C1-C6 alkyl group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis, multi-drug-resistant Mycobacterium tuberculosis, and a typical acid-fast bacteria.

  本发明提供了由以下通式代表的 2，3-二氢-6-硝基咪唑并[2，1-b]恶唑化合物： 其中R1代表氢原子或C1-C6烷基，n代表0至6的整数，R2代表基团-OR3或类似基团，R3代表氢原子、C1-C6烷基或类似基团，或者R1和-(CH2)nR2可以通过氮原子与相邻的碳原子相互结合，从而形成通式(H)代表的螺环： 其中 R41 为氢、C1-C6 烷基或类似基团。本化合物对结核分枝杆菌、多重耐药结核分枝杆菌和典型的耐酸细菌有很好的杀菌作用。
• 2,3-dihydro-6-nitroimidazo[2,1-b]oxazoles compound
  申请人：OTSUKA PHARMACEUTICAL CO., LTD.

  公开号：EP2570418A2

  公开（公告）日：2013-03-20

  The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: wherein R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R2 represents a group -OR3 or the like, and R3 represents a hydrogen atom, C1-C6 alkyl group or the like, or R1 and -(CH2)nR2 may bind to each other together with carbon atoms adjacent thereto through nitrogen atoms so as to form a spiro ring represented by the general formula (H): wherein R41 is hydrogen, C1-C6 alkyl group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis, multi-drug-resistant Mycobacterium tuberculosis, and atypical acid-fast bacteria.

  本发明提供了一种由以下通式表示的 2,3-二氢-6-硝基咪唑并[2,1-b]恶唑化合物： 其中R1代表氢原子或C1-C6烷基，n代表0至6的整数，R2代表基团-OR3或类似基团，R3代表氢原子、C1-C6烷基或类似基团，或者R1和-(CH2)nR2可以通过氮原子与相邻的碳原子相互结合，从而形成通式(H)代表的螺环： 其中 R41 为氢、C1-C6 烷基或类似基团。本化合物对结核分枝杆菌、多重耐药结核分枝杆菌和非典型耐酸菌有很好的杀菌作用。
• 硼酸衍生物
  申请人：首药控股（北京）股份有限公司

  公开号：CN115521325A

  公开（公告）日：2022-12-27

  本发明涉及硼酸衍生物；本发明提供了式(I)化合物、或其前药、酯、醚、溶剂化物、多晶型物、异构体或上述任一种的药学上可接受的盐、或上述任两种以上的任意比例的混合物、包含这些化合物的药物组合物，以及其在治疗跟lmp7相关的疾病中的用途。