2,4-dimethoxy-6-[3-[(4S,5S)-5-[methoxy(methyl)carbamoyl]-2,2-dimethyl-1,3-dioxolan-4-yl]propyl]benzoic acid | 1216818-01-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,4-dimethoxy-6-[3-[(4S,5S)-5-[methoxy(methyl)carbamoyl]-2,2-dimethyl-1,3-dioxolan-4-yl]propyl]benzoic acid
• CAS: 1216818-01-7
• 化学式: C₂₀H₂₉NO₈
• 分子量: 411.452
• InChiKey: ORRMQGBJGUIFSE-YOEHRIQHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  29
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  104
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  2,4-dimethoxy-6-[3-[(4S,5S)-5-[methoxy(methyl)carbamoyl]-2,2-dimethyl-1,3-dioxolan-4-yl]propyl]benzoic acid 在 偶氮二甲酸二异丙酯 、 三苯基膦 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 4.25h， 生成 (5S,9S,14S)-18,20-dimethoxy-7,7,14-trimethyl-6,8,15-trioxatricyclo[15.4.0.05,9]henicosa-1(17),18,20-trien-11-yne-10,16-dione
  参考文献：
  名称：

  An Enantioselective Synthesis of the Resorcylic Acid Lactone L-783,277 via Addition of an Acetylide Anion to a Tethered Weinreb Amide

  摘要：

  Treatment of the terminal acetylene 12, readily obtained from the previously reported acid 10, with LiHMDS resulted in a novel macrocyclization reaction to give the cycloalkyne 13. Subjection of compound 13 to hydrogenation under Lindlar-type conditions afforded the Z-configured enone 14 that could be converted into the resorcylic acid lactone 4 upon treatment with BCl3 in CH2Cl2 at -78 degrees C.

  DOI：

  10.3987/com-10-s(e)67
• 作为产物：
  描述：

  2,4-dimethoxy-6-[(E)-3-[(4S,5S)-5-[methoxy(methyl)carbamoyl]-2,2-dimethyl-1,3-dioxolan-4-yl]prop-1-enyl]benzoic acid 在 palladium 10% on activated carbon 、 氢气 作用下， 以 乙醇 为溶剂， 18.0 ℃ 、344.75 kPa 条件下， 反应 36.0h， 以97%的产率得到2,4-dimethoxy-6-[3-[(4S,5S)-5-[methoxy(methyl)carbamoyl]-2,2-dimethyl-1,3-dioxolan-4-yl]propyl]benzoic acid
  参考文献：
  名称：

  A chemoenzymatic and enantioselective total synthesis of the resorcylic acid lactone L-783,290, the trans-isomer of L-783,277

  摘要：

  The structure, 5, assigned to the resorcylic acid lactone L-783,290 has been prepared for the first time and in a modular fashion using a Heck reaction to link the readily available fragments 8 and 14. Chemoenzymatic methods were used to prepare the latter fragment, in enantiopure form, from chlorobenzene. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2009.12.067

文献信息

• A chemoenzymatic and enantioselective total synthesis of the resorcylic acid lactone L-783,290, the trans-isomer of L-783,277
  作者：Andrew Lin、Anthony C. Willis、Martin G. Banwell

  DOI：10.1016/j.tetlet.2009.12.067

  日期：2010.2

  The structure, 5, assigned to the resorcylic acid lactone L-783,290 has been prepared for the first time and in a modular fashion using a Heck reaction to link the readily available fragments 8 and 14. Chemoenzymatic methods were used to prepare the latter fragment, in enantiopure form, from chlorobenzene. (C) 2009 Elsevier Ltd. All rights reserved.
• An Enantioselective Synthesis of the Resorcylic Acid Lactone L-783,277 via Addition of an Acetylide Anion to a Tethered Weinreb Amide
  作者：Martin G. Banwell、Andrew Lin、Anthony C. Willis

  DOI：10.3987/com-10-s(e)67

  日期：——

  Treatment of the terminal acetylene 12, readily obtained from the previously reported acid 10, with LiHMDS resulted in a novel macrocyclization reaction to give the cycloalkyne 13. Subjection of compound 13 to hydrogenation under Lindlar-type conditions afforded the Z-configured enone 14 that could be converted into the resorcylic acid lactone 4 upon treatment with BCl3 in CH2Cl2 at -78 degrees C.