ethyl 1-(3,4-dimethoxyphenyl)-2-(2,4-dibenzyloxy-5-methoxyphenyl)-7-benzyloxy-8,9-dimethoxy-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylate | 919082-34-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: ethyl 1-(3,4-dimethoxyphenyl)-2-(2,4-dibenzyloxy-5-methoxyphenyl)-7-benzyloxy-8,9-dimethoxy-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylate
• 英文别名: Ethyl 1-(3,4-dimethoxyphenyl)-8,9-dimethoxy-2-[5-methoxy-2,4-bis(phenylmethoxy)phenyl]-7-phenylmethoxy-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylate
• CAS: 919082-34-1
• 化学式: C₅₃H₅₁NO₁₀
• 分子量: 861.989
• InChiKey: VJIGQHBQCSLIIB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.3
• 重原子数：
  64
• 可旋转键数：
  19
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  105
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  ethyl 1-(3,4-dimethoxyphenyl)-2-(2,4-dibenzyloxy-5-methoxyphenyl)-7-benzyloxy-8,9-dimethoxy-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylate 在 palladium on activated charcoal 4-二甲氨基吡啶 、 氢气 、 sodium hydride 、 三乙胺 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 四氢呋喃 、 二氯甲烷 、 乙酸乙酯 、 1,2-二氯乙烷 为溶剂， 20.0 ℃ 、517.11 kPa 条件下， 反应 4.0h， 生成 14-(3,4-dimethoxyphenyl)-3,10-diacetoxy-2,11,12-trimethoxy-6H-chromeno[4',3':4,5]pyrrolo[2,1-a]isoquinolin-6-one
  参考文献：
  名称：

  Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings

  摘要：

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.

  DOI：

  10.1021/jo061810h
• 作为产物：
  描述：

  (3,4-二甲氧基苯基)乙酰氯 在 碳酸氢钠 、 sodium carbonate 、 三氯氧磷 作用下， 以 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 23.0h， 生成 ethyl 1-(3,4-dimethoxyphenyl)-2-(2,4-dibenzyloxy-5-methoxyphenyl)-7-benzyloxy-8,9-dimethoxy-5,6-dihydropyrrolo[2,1-a]isoquinoline-3-carboxylate
  参考文献：
  名称：

  Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings

  摘要：

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.

  DOI：

  10.1021/jo061810h

文献信息

• Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings
  作者：Poonsakdi Ploypradith、Thaninee Petchmanee、Poolsak Sahakitpichan、Nichole D. Litvinas、Somsak Ruchirawat

  DOI：10.1021/jo061810h

  日期：2006.12.1

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.