tert-butyl L-2-[bis(tert-butoxycarbonyl)amino]-4-oxo-butanoate | 481053-32-1

• 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: tert-butyl L-2-[bis(tert-butoxycarbonyl)amino]-4-oxo-butanoate
• 英文别名: tert-butyl 2-(S)-2-[bis(tert-butoxycarbonyl)amino]-4-oxobutanoate；Boc₂-Asp(H)-O_tBu；tert-butyl (2S)-2-[bis[(2-methylpropan-2-yl)oxycarbonyl]amino]-4-oxobutanoate
• CAS: 481053-32-1
• 化学式: C₁₈H₃₁NO₇
• 分子量: 373.447
• InChiKey: UXYRHQPSHRCBMI-LBPRGKRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  26
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  99.2
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  tert-butyl L-2-[bis(tert-butoxycarbonyl)amino]-4-oxo-butanoate 在 palladium on activated charcoal potassium carbonate 作用下， 以 水 、 溶剂黄146 、 N,N-二甲基甲酰胺 为溶剂， 生成 7-O-tert-butyl 1-O-ethyl (6S)-6-[bis[(2-methylpropan-2-yl)oxycarbonyl]amino]-2-hydroxyheptanedioate
  参考文献：
  名称：

  Asymmetric synthesis of differentially protected meso-2,6-diaminopimelic acid

  摘要：

  meso-2,6-Diaminopimelic acid, an important linking component of bacterial cell walls and a biosynthetic precursor of L-lysine has been prepared differentially protected in a stereospecific manner from both L-aspartic and L-glutamic acid. The key step to establish the second chiral center involves the asymmetric reduction of a pyruvate moiety with Alpine-Borane(R). S-2-Amino-6-oxopimelic acid, the hydrolyzed open chain form of tetrahydrodipicolinic acid, a biosynthetic precursor of meso-2,6-diaminopimelic acid, was also prepared via deprotection of the key pyruvate intermediate. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(02)01844-0
• 作为产物：
  描述：

  4-benzyl 1-t-butyl L-aspartate 在 4-二甲氨基吡啶 、 palladium on activated charcoal 4-二甲氨基吡啶 、 dimethyl sulfide borane 、 氢气 、 dipyridine chromium trioxide 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 乙腈 为溶剂， 反应 24.0h， 生成 tert-butyl L-2-[bis(tert-butoxycarbonyl)amino]-4-oxo-butanoate
  参考文献：
  名称：

  Asymmetric synthesis of differentially protected meso-2,6-diaminopimelic acid

  摘要：

  meso-2,6-Diaminopimelic acid, an important linking component of bacterial cell walls and a biosynthetic precursor of L-lysine has been prepared differentially protected in a stereospecific manner from both L-aspartic and L-glutamic acid. The key step to establish the second chiral center involves the asymmetric reduction of a pyruvate moiety with Alpine-Borane(R). S-2-Amino-6-oxopimelic acid, the hydrolyzed open chain form of tetrahydrodipicolinic acid, a biosynthetic precursor of meso-2,6-diaminopimelic acid, was also prepared via deprotection of the key pyruvate intermediate. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(02)01844-0

文献信息

• Synthesis of pentafluorobenzene-based NHC adducts and their catalytic activity in the microwave-assisted reactions of aldehydes
  作者：Evanthia Papadaki、Victoria Magrioti

  DOI：10.1016/j.tetlet.2019.151419

  日期：2020.1

  as standalone organocatalysts in various reactions, mostly using aromatic aldehydes as substrates. We have previously demonstrated the efficiency of azolium-2-carboxylate zwitterions in the hydroxymethylation of aldehydes, especially aliphatic aldehydes, under microwave irradiation. In the present work, we report a series of pentafluorobenzene-based NHC adducts and their efficiency in the hydroxymethylation

  N-杂环卡宾（NHC）已广泛用于有机金属化学中作为配体，以及在各种反应中用作独立的有机催化剂，主要使用芳族醛作为底物。先前我们已经证明了在微波辐射下，-2-羧酸偶氮鎓两性离子在醛尤其是脂肪族醛的羟甲基化中的效率。在目前的工作中，我们报告了一系列基于五氟苯的NHC加合物及其在微波辐射下脂族和芳族醛的羟甲基化和自缩合反应中的效率。在反应条件下释放出游离的羧苯甲酸酯，并且1,3-二甲基1,2-（全氟苯基）咪唑烷和1,3-双（2,6-二甲基苯基）-2-（全氟苯基）咪唑烷被证明是最有效的前催化剂。
• [EN] INHIBITORS OF DNMT1 AS ANTICANCER THERAPEUTIC AGENTS<br/>[FR] INHIBITEURS DE DNMT1 UTILISÉS EN TANT QU'AGENTS THÉRAPEUTIQUES ANTICANCÉREUX
  申请人：VICTORIA LINK LTD

  公开号：WO2020013712A1

  公开（公告）日：2020-01-16

  Inhibitors of DNA methyltransferase 1 (an enzyme responsible for the maintenance of DNA CpG methylation marks in human cells) and their use as therapeutic agents against various cancers. The invention relates to compounds, pharmaceutical compositions, methods for inhibiting DNA methyltransferase 1, and methods for treating cancer. The inhibitors are compounds of the general formula.

  DNA 甲基转移酶 1 的抑制剂（一种负责在人类细胞中维持 DNA CpG 甲基化标记的酶）及其作为治疗各种癌症的药物的使用。该发明涉及化合物、药物组合物、抑制 DNA 甲基转移酶 1 的方法以及治疗癌症的方法。这些抑制剂是一般公式的化合物。
• Microwave-assisted synthesis of hydroxymethyl ketones using azolium-2-carboxylate zwitterions as catalyst precursors
  作者：Evanthia Papadaki、Lionel Delaude、Victoria Magrioti

  DOI：10.1016/j.tet.2017.11.024

  日期：2017.12

  6-diisopropylphenyl)imidazol-2-ylidene (IDip) and 1,3-dimesitylimidazolin-2-ylidene (SIMes) were identified as promising organocatalysts for the microwave-assisted synthesis of hydroxymethyl ketones from aldehydes and paraformaldehyde. The azolium-2-carboxylate zwitterions IDip·CO2 and SIMes·CO2 were then tested as single-component N-heterocyclic carbene (NHC) precursors in the hydroxymethylation of heptanal and benzaldehyde

  在存在碱的情况下，初步筛选了六种常见的咪唑鎓盐，咪唑啉鎓盐和二硫鎓盐之后，1,3-双（2,6-二异丙基苯基）咪唑-2-亚胺基（IDip）和1,3-二甲酰亚胺咪唑啉-2-亚砜（SIMes）被认为是微波从醛和多聚甲醛合成羟甲基酮的有前途的有机催化剂。然后，在庚醛和苯甲醛的羟甲基化反应中，将2-羧酸二氮唑两性离子IDip·CO 2和SIMes·CO 2作为单组分N-杂环卡宾（NHC）前体进行了测试。后者的加合物是两个反应的有效预催化剂。它已成功应用于各种脂族和芳族底物（14个实例，产率10-97％）。
• Macrocyclic BACE1 inhibitors with hydrophobic cross-linked structures: Optimization of ring size and ring structure
  作者：Takuya Otani、Yasunao Hattori、Kenichi Akaji、Kazuya Kobayashi

  DOI：10.1016/j.bmc.2021.116517

  日期：2021.12

  Based on the X-ray crystallography of recombinant BACE1 and a hydroxyethylamine-type peptidic inhibitor, we introduced a cross-linked structure between the P1 and P3 side chains of the inhibitor to enhance its inhibitory activity. The P1 and P3 fragments bearing terminal alkenes were synthesized, and a ring-closing metathesis of these alkenes was used to construct the cross-linked structure. Evaluation

  基于重组 BACE1 和羟乙胺型肽抑制剂的 X 射线晶体学，我们在抑制剂的 P1 和 P3 侧链之间引入了交联结构，以增强其抑制活性。合成了带有末端烯烃的P1和P3片段，并使用这些烯烃的闭环复分解来构建交联结构。使用具有不同侧链长度的 P1 和 P3 片段评估环大小表明，13 元环是最佳的，尽管它们的活性与母体化合物相比有所降低。此外，发现最佳环结构是在 P3 β 位具有二甲基支链取代基的大环，其活性比未取代的大环高约 100 倍。此外，
• Carboxymethylproline synthase catalysed syntheses of functionalised N-heterocycles
  作者：Refaat B. Hamed、Jasmin Mecinović、Christian Ducho、Timothy D. W. Claridge、Christopher J. Schofield

  DOI：10.1039/b924519g

  日期：——

  The utility of wild-type and variant carboxymethylproline synthases for biocatalysis was demonstrated by preparing functionalised 5-, 6- and 7-membered N-heterocycles from amino acid aldehydes and (alkylated) malonyl-coenzyme A derivatives; the N-heterocycles produced were converted to the corresponding bicyclic β-lactams by a carbapenem synthetase.

  通过从氨基酸醛和（烷基化）丙二酰辅酶 A 衍生物制备功能化的 5、6 和 7 元 N-杂环，证明了野生型和变异型羧甲基脯氨酸合成酶在生物催化方面的用途；生成的 N-杂环通过碳青霉烯合成酶转化为相应的双环 β-内酰胺。