ethyl 5,6,7,8-tetrahydro-4H-cyclohepta[d]isoxazole-3-carboxylate | 500576-41-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: ethyl 5,6,7,8-tetrahydro-4H-cyclohepta[d]isoxazole-3-carboxylate
• 英文别名: ethyl 5,6,7,8-tetrahydro-4H-cyclohepta[d][1,2]oxazole-3-carboxylate
• CAS: 500576-41-0
• 化学式: C₁₁H₁₅NO₃
• 分子量: 209.245
• InChiKey: OFDPZVSYFCGQOI-UHFFFAOYSA-N

物化性质

• 沸点：
  365.9±42.0 °C(Predicted)
• 密度：
  1.134±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  52.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 5,6,7,8-tetrahydro-4H-cyclohepta[d]isoxazole-3-carboxylate 在 甲醇 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 N,N-二异丙基乙胺 、 sodium hydroxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 4.0h， 生成 MMS1001
  参考文献：
  名称：

  Discovery of small molecules that inhibit melanogenesis via regulation of tyrosinase expression

  摘要：

  5,6,7,8-Tetrahydro-4H-cyclohepta[d]isoxazole derivatives were synthesized and evaluated as a novel class of inhibitors for alpha-melanocyte-stimulating hormone (alpha-MSH) induced melanogenesis in a mouse melanoma B16F10 cell line. Compound 8e (IC50 = 0.67 mu M), 8h (IC50 = 1.01 mu M) and 9b (IC50 = 0.99 mu M) exhibited a potent inhibitory activity approximately 85- to 126-fold greater than kojic acid, a well-known potent inhibitor. A biochemical study indicates that the activity of this series should be displayed via down-regulation of the expression of tyrosinase. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2012.09.003
• 作为产物：
  描述：

  ethyl α,2-dioxocycloheptaneacetate 在 盐酸羟胺 作用下， 以 甲醇 为溶剂， 反应 1.0h， 生成 ethyl 5,6,7,8-tetrahydro-4H-cyclohepta[d]isoxazole-3-carboxylate
  参考文献：
  名称：

  Discovery of small molecules that inhibit melanogenesis via regulation of tyrosinase expression

  摘要：

  5,6,7,8-Tetrahydro-4H-cyclohepta[d]isoxazole derivatives were synthesized and evaluated as a novel class of inhibitors for alpha-melanocyte-stimulating hormone (alpha-MSH) induced melanogenesis in a mouse melanoma B16F10 cell line. Compound 8e (IC50 = 0.67 mu M), 8h (IC50 = 1.01 mu M) and 9b (IC50 = 0.99 mu M) exhibited a potent inhibitory activity approximately 85- to 126-fold greater than kojic acid, a well-known potent inhibitor. A biochemical study indicates that the activity of this series should be displayed via down-regulation of the expression of tyrosinase. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2012.09.003

文献信息

• Three-Component Coupling Approach to Trachyspic Acid
  作者：Daniel C. Schmitt、Leighann Lam、Jeffrey S. Johnson

  DOI：10.1021/ol202002r

  日期：2011.10.7

  Three-component coupling of the lithium enolate of t-BuOAc, silyl glyoxylate, and an alpha,beta-unsaturated ketone enables the rapid construction of the trachyspic acid carbon skeleton. A 3,4-disubstituted isoxazole is utilized to mask the C7/C9 dicarbonyl. New enolsilane/nitrile-oxide cycloadditions enable the preparation of various 3,4-disubstituted isoxazoles that are challenging to access by other means.