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ethyl 6-methyl-2-oxohept-5-enoate | 76729-61-8

中文名称
——
中文别名
——
英文名称
ethyl 6-methyl-2-oxohept-5-enoate
英文别名
Ethyl-2-oxo-6-methyl-5-heptenoate
ethyl 6-methyl-2-oxohept-5-enoate化学式
CAS
76729-61-8
化学式
C10H16O3
mdl
MFCD11555717
分子量
184.235
InChiKey
BEDDBBCLHNGXGD-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.3
  • 重原子数:
    13
  • 可旋转键数:
    6
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.6
  • 拓扑面积:
    43.4
  • 氢给体数:
    0
  • 氢受体数:
    3

SDS

SDS:fcf8becabb649f37f88cb37bc9e3f396
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上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    参考文献:
    名称:
    对白血病具有强抗肿瘤活性的新型头孢紫杉醇酯的对映选择性半合成
    摘要:
    以高三尖杉酯碱 (HHT, 1 ) 为代表的头孢紫杉醇类生物碱 (CTA) 对不同类型的白血病细胞显示出强大的功效。在这项研究中,开发了一种用手性 Ru[DTBM-SegPhos](OAc) 2氢化 β-取代衣康酸单酯的方法。这种金属催化的不对称氢化能够方便地半合成具有手性 2'-取代-琥珀酸 4-单甲酯作为侧链的新型头孢紫杉醇衍生物。研究了化合物抗肿瘤活性的初步构效关系(SAR)。最终,我们发现了化合物10b对白血病具有有效的抗肿瘤活性,对一组癌细胞具有广泛的抗癌活性。我们的研究提供了一个高度对映选择性的过程,能够半合成头孢紫杉醇衍生物,这对于在科学基础上进一步研究很有趣。
    DOI:
    10.1016/j.ejmech.2022.114731
  • 作为产物:
    描述:
    5-溴-2-甲基-2-戊烯叔丁基锂 、 sodium iodide 作用下, 以 乙醚丙酮 为溶剂, 反应 25.0h, 生成 ethyl 6-methyl-2-oxohept-5-enoate
    参考文献:
    名称:
    Synthesis of (+/-)-Curcumene Ether
    摘要:
    以 5-溴-2-甲基-2-戊烯和 2-氨基-5-甲基苯酚为起始原料,通过分子内 Heck 反应生成一个立体的季中心,经过 9 个步骤合成了 (+/-)- 苝醚,总收率为 7%。
    DOI:
    10.1055/s-2003-40343
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文献信息

  • Process for Preparing 2-Methoxycarbonylmethyl-6,6-Dimethyl-2-Tetrahydropyran Carboxylic Acid
    申请人:Ferrari Massimo
    公开号:US20090043093A1
    公开(公告)日:2009-02-12
    Process for preparing 2-methoxycarbonylmethyl-6,6-dimethyl-2-tetrahydropyran carboxylic acid (I) comprising: a) Reaction of 5-bromo-2-methyl-2-pentene (III) with magnesium and then diethyloxalate to obtain ethyl-2-oxo-6-methyl-5-heptenoate (IV); b) Reaction of ethyl-2-oxo-6-methyl-5-heptenoate (IV) with an alkali amide and methyl acetate to obtain ethyl-2-methoxycarbonylmethyl-2-hydroxy-6-methyl-5-heptenoate (V); c) Reaction of ethyl-2-methoxycarbonylmethyl-2-hydroxy-6-methyl-5-heptenoate (V) with an alkali metal hydroxide to obtain the corresponding 2-carboxymethyl-2-hydroxy-6-methyl-5-heptenoic acid (VI); d) Cyclisation of 2-carboxymethyl-2-hydroxy-6-methyl-5-heptenoic acid (VI) with formic acid to give 2-carboxymethyl-6,6-dimethyl-2-tetrahydropyrancarboxylic acid (VII); e) Monoesterification of 2-carboxymethyl-6,6-dimethyl-2-tetrahydropyrancarboxylic acid (VII) to 2-methoxycarbonylmethyl-6,6-dimethyl-2-tetrahydropyran carboxylic acid (I), characterised in that in stage (e) the 2-methoxycarbonylmethyl-6,6-dimethyl-2-tetrahydropyran carboxylic acid (I) is purified by means of the formation of the corresponding salt with cyclohexylamine (IA).
    制备2-甲氧羰基甲基-6,6-二甲基-2-四氢吡喃羧酸(I)的过程包括: a)将5-溴-2-甲基-2-戊烯(III)与镁反应,然后与草酸二乙酯反应,得到乙酸乙酯-2-氧代-6-甲基-5-庚烯酸酯(IV); b)将乙酸乙酯-2-氧代-6-甲基-5-庚烯酸酯(IV)与碱金属酰胺和乙酸甲酯反应,得到乙酸乙酯-2-甲氧羰基甲基-2-羟基-6-甲基-5-庚烯酸酯(V); c)将乙酸乙酯-2-甲氧羰基甲基-2-羟基-6-甲基-5-庚烯酸酯(V)与碱金属氢氧化物反应,得到相应的2-羧甲基-2-羟基-6-甲基-5-庚烯酸(VI); d)将2-羧甲基-2-羟基-6-甲基-5-庚烯酸(VI)与甲酸环化,得到2-羧甲基-6,6-二甲基-2-四氢吡喃羧酸(VII); e)将2-羧甲基-6,6-二甲基-2-四氢吡喃羧酸(VII)进行单酯化反应,得到2-甲氧羰基甲基-6,6-二甲基-2-四氢吡喃羧酸(I),其特征在于在阶段(e)中,通过与环己胺(IA)形成相应的盐来纯化2-甲氧羰基甲基-6,6-二甲基-2-四氢吡喃羧酸(I)。
  • The first semi-synthesis of enantiopure homoharringtonine via anhydrohomoharringtonine from a preformed chiral acyl moiety
    作者:Jean-Pierre Robin、Robert Dhal、Gilles Dujardin、Laurent Girodier、Laurence Mevellec、Sandrine Poutot
    DOI:10.1016/s0040-4039(99)00327-5
    日期:1999.4
    (2'R,3S,4S,5R)-(-)-Homoharringtonine 2 was synthesized by direct esterification of cephalotaxine, using the activated forms of suitably substituted tetrahydropyrancarboxylic acids as sterically compact chiral side-chain precursors, followed by selective ring opening of the resulting (2'R,3S,4S,5R)-(-)-anhydrohomoharringtonine 6. Both enantiomers of the anhydro acyl moiety were prepared either by asymmetric alpha-hydroxyalkylation of the suitably substituted ethylenic alpha-ketoester 7 followed by acidic cyclisation, or by resolving the corresponding racemic mixture via formation of diastereomers with (-)quinine. Racemic cephalotaxine, as well as both its enantiomers, were prepared from natural -partially racemized- (-)-cephalotaxine 1. (C) 1999 Elsevier Science Ltd, All rights reserved.
    (2'R,3S,4S,5R)-(-)-齐墩果酸甲酯 2 由 cephalotaxine 直接酯化制得,采用适当取代的四氢吡喃甲酸的活化形式作为立体紧凑的手性侧链前体,随后通过选择性开环得到相应的 (2'R,3S,4S,5R)-(-)-anhydrohomoharringtonine 6。干酰基部分的两个对映体通过以下两种方法制备:一种方法是对适当取代的烯基 α-酮酯 7 进行不对称 α-羟基烷基化,然后进行酸性环化;另一种方法是通过对 (-)-金鸡纳碱形成非对映异构体来分离对应的外消旋混合物。外消旋 cephalotaxine 以及其两个对映体均由天然的部分外消旋的 (-)-cephalotaxine 1 制得。版权 © 1999 Elsevier Science Ltd,保留所有权利。
  • Novel cephalotaxane derivatives and process for their preparation
    申请人:——
    公开号:US20020045750A1
    公开(公告)日:2002-04-18
    The present invention concerns a new general process for asymetric hemisynthesis of harringtonines and their analogs, that are alcaloïds used in chimiotherapy. This process comprises direct esterification of a natural cephalotaxine with an acylating compound constituted of a side chain precursor which backbone and fonctionalization are entirely preformed.
    本发明涉及一种新的用于制备哈林顿碱及其类似物的不对称半合成的通用过程,这些化合物是用于化疗的生物碱。该过程包括将天然的头孢松碱与由侧链前体组成的酰化化合物直接酯化,该侧链前体的骨架和功能化已经完全形成。
  • Cephalotaxane derivatives and their processes of preparation and purification
    申请人:Robin Jean-Pierre
    公开号:US20050090484A1
    公开(公告)日:2005-04-28
    The present invention concerns a new general process for asymmetric hemisynthesis of harringtonines and their analogs, that are alkaloids used in chemotherapy. This process comprises direct esterification of a natural cephalotaxine with an acylating compound constituted of a side chain precursor which backbone and functionalization are entirely preformed. The invention also concerns a natural, synthetic or semi-synthetic harringtonines including their tautomeric forms and their salts of the following formula: wherein n=2 (i.e. harringtonine) or n=3 (i.e. homoharringtonine), in which the total content of impurities, possibly including enantiomeric forms, is lower than 1%, and/or the content of the major impurity is lower than 0.9%, and/or the chromatographic assay exhibits a harringtonines content higher than 97.5%.
    本发明涉及一种新的不对称半合成哈林顿碱及其类似物的通用工艺,这些碱是用于化疗的生物碱。该工艺包括将天然的头孢松与一个酰化化合物直接酯化,该化合物由一个侧链前体构成,其主干和功能化已经完全形成。该发明还涉及以下式子的天然、合成或半合成哈林顿碱及其互变异构体和盐:其中n=2(即哈林顿碱)或n=3(即同型哈林顿碱),其中可能包括对映异构体在内的总杂质含量低于1%,和/或主要杂质含量低于0.9%,和/或色谱测定显示哈林顿碱含量高于97.5%。
  • Synthesis of Borylated Carbocycles by [2 + 2]-Cycloadditions and Photo-Ene Reactions
    作者:Jarett M. Posz、Neetu Sharma、Paige A. Royalty、Yanyao Liu、Christophe Salome、Thomas C. Fessard、M. Kevin Brown
    DOI:10.1021/jacs.4c01557
    日期:2024.4.10
    agrochemicals and pharmaceuticals. Here, we present the synthesis of borylated bicyclo[2.1.1]hexanes via crossed [2 + 2]-cycloaddition. Due to the presence of the C–B bond, a variety of structures can be easily prepared that are not accessible by other methods. Moreover, a rare photo-ene reaction is also disclosed, allowing for the diastereoselective synthesis of trisubstituted borylated cyclopentanes.
    饱和双环化合物是农用化学品和药品开发中一类有价值的构建模块。在这里,我们提出了通过交叉[2 + 2]-环加成合成硼酸化双环[2.1.1]己烷。由于 C-B 键的存在,可以轻松制备其他方法无法获得的各种结构。此外,还公开了一种罕见的光烯反应,允许非对映选择性合成三取代的硼基化环戊烷。
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