(S)-allyl 4-((benzyloxycarbonyl)(4-methoxybenzyl)amino)-3-oxopentanoate | 1052213-53-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (S)-allyl 4-((benzyloxycarbonyl)(4-methoxybenzyl)amino)-3-oxopentanoate
• 英文别名: allyl (S)-4-((benzyloxycarbonyl)(4-methoxybenzyl)amino)-3-oxopentanoate
• CAS: 1052213-53-2
• 化学式: C₂₄H₂₇NO₆
• 分子量: 425.481
• InChiKey: RMCAEAHRFDCFSO-SFHVURJKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.91
• 重原子数：
  31.0
• 可旋转键数：
  11.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  82.14
• 氢给体数：
  0.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  聚合甲醛 、 二碘甲烷 、 (S)-allyl 4-((benzyloxycarbonyl)(4-methoxybenzyl)amino)-3-oxopentanoate 在 diethylzinc 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 反应 0.67h， 以79%的产率得到allyl (5S)-5-((benzyloxycarbonyl)(4-methoxybenzyl)amino)-2-(hydroxymethyl)-4-oxohexanoate
  参考文献：
  名称：

  Stereoselective Formation of a Functionalized Dipeptide Isostere by Zinc Carbenoid-Mediated Chain Extension

  摘要：

  The application of a zinc carbenoid-mediated chain-extension reaction to a functionalized peptide isostere is reported. The cleavage site of human CVM protease was utilized as a target for testing the synthetic methodology. The utility of this chain-extension reaction is demonstrated in the preparation of an amino acid-derived alpha-unsubstituted gamma-keto ester, which is incorporated into a framework that mimics a tetrapeptide. The identification of a suitable protecting group strategy facilitated the application of a tandem reaction for the incorporation of an alpha-side chain, and the use of an oxazolidinone auxiliary provided excellent diastereocontrol in a tandem chain-extension-aldol reaction. Stereoselectivity of the tandem chain-extension-aldol reaction was determined through application of a CAN-mediated oxidative cleavage reaction.

  DOI：

  10.1021/jo801993k
• 作为产物：
  描述：

  monoallyl malonate 、 (S)-2-(((benzyloxy)carbonyl)(4-methoxybenzyl)amino)propanoic acid 在 N,N'-羰基二咪唑 、 二丁基镁 作用下， 以 四氢呋喃 、 正庚烷 为溶剂， 反应 0.5h， 以84%的产率得到(S)-allyl 4-((benzyloxycarbonyl)(4-methoxybenzyl)amino)-3-oxopentanoate
  参考文献：
  名称：

  Stereoselective Formation of a Functionalized Dipeptide Isostere by Zinc Carbenoid-Mediated Chain Extension

  摘要：

  The application of a zinc carbenoid-mediated chain-extension reaction to a functionalized peptide isostere is reported. The cleavage site of human CVM protease was utilized as a target for testing the synthetic methodology. The utility of this chain-extension reaction is demonstrated in the preparation of an amino acid-derived alpha-unsubstituted gamma-keto ester, which is incorporated into a framework that mimics a tetrapeptide. The identification of a suitable protecting group strategy facilitated the application of a tandem reaction for the incorporation of an alpha-side chain, and the use of an oxazolidinone auxiliary provided excellent diastereocontrol in a tandem chain-extension-aldol reaction. Stereoselectivity of the tandem chain-extension-aldol reaction was determined through application of a CAN-mediated oxidative cleavage reaction.

  DOI：

  10.1021/jo801993k

文献信息

• Formation of γ-Lactones through CAN-Mediated Oxidative Cleavage of Hemiketals
  作者：Alexander M. Jacobine、Weimin Lin、Bethany Walls、Charles K. Zercher

  DOI：10.1021/jo801258h

  日期：2008.9.19

  The generation of substituted gamma-lactones can be accomplished through application of a tandem chain extension-aldol reaction, followed by CAN-mediated oxidative cleavage of the aldol product. The oxidative cleavage requires the intermediacy of a hemiketal and the presence of an alpha-heteroatom. Formation of the gamma-lactone through the oxidative cleavage is used to assign stereochemistry of the

  取代的γ-内酯的产生可通过应用串联扩链​​-醛醇缩合反应，然后通过CAN介导的醛醇缩合产物的氧化裂解来完成。氧化裂解需要中间分子和α-杂原子的存在。通过氧化裂解形成γ-内酯可用于指定醛醇缩合反应的立体化学，并用作天然产物菜豆酸家族成员的短合成的最后一步。