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2-脱氧-2,2-二氟-4,5-O-(1-甲基乙亚基)-戊糖酸乙酯 | 114420-06-3

中文名称
2-脱氧-2,2-二氟-4,5-O-(1-甲基乙亚基)-戊糖酸乙酯
中文别名
——
英文名称
ethyl 2-deoxy-2,2-difluoro-D-erythro,D-threo-pentonate
英文别名
ethyl 2,2-difluoro-3-hydroxy-3-(2,2-dimethyl-dioxolan-4-yl)propionate;Ethyl (3R,S)-2,2-difluoro-3-hydroxy-3-(2,2-dimethyldioxolan-4-yl)propionate;ethyl 3-(2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-difluoro-3-hydroxypropanoate
2-脱氧-2,2-二氟-4,5-O-(1-甲基乙亚基)-戊糖酸乙酯化学式
CAS
114420-06-3
化学式
C10H16F2O5
mdl
MFCD08460241
分子量
254.231
InChiKey
OUFRYOWGFSOSEY-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

物化性质

  • 沸点:
    338.4±37.0 °C(Predicted)
  • 密度:
    1.232±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    0.8
  • 重原子数:
    17
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.9
  • 拓扑面积:
    65
  • 氢给体数:
    1
  • 氢受体数:
    7

安全信息

  • 海关编码:
    2932999099

SDS

SDS:4d3fb950afb1f2e9ad96650b6c58175a
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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

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文献信息

  • Process for Preparing Gemcitabine and Associated Intermediates
    申请人:Naddaka Vladimir
    公开号:US20070191598A1
    公开(公告)日:2007-08-16
    The present invention provides processes for preparing novel chemical substances that are useful as intermediates in the preparation of gemcitabine and processes for preparing gemcitabine therewith. Exemplary intermediates include mixtures of D-erythro and D-threo (3R- and 3S-) isomers of 3-(hydroxy)-2,2-difluoro-3-(2,2-dimethyldioxolan-4-yl)propionic acid salts. Also provided is a novel process for selectively isolating the D-erythro and D-threo isomers of the said salts in purities of at least about 95%, and processes of using them for preparing nucleoside analogs such as, e.g., gemcitabine and intermediates and analogs thereof.
    本发明提供了用于制备新型化学物质的方法,这些化学物质可作为吉西他滨制备过程中的中间体,并提供了与之一起制备吉西他滨的方法。示例中间体包括3-(羟基)-2,2-二氟-3-(2,2-二甲基二氧杂环戊酮-4-基)丙酸盐的D-erythro和D-threo(3R-和3S-)异构体的混合物。还提供了一种新型方法,用于选择性地分离所述盐的D-erythro和D-threo异构体,其纯度至少约为95%,以及使用它们制备类似核苷类似物(例如吉西他滨及其中间体和类似物)的方法。
  • Novel and Highly Stereoselective Process for Preparing Gemcitabine and Intermediates Thereof
    申请人:Xu Yongxiang
    公开号:US20100179314A1
    公开(公告)日:2010-07-15
    The present invention provides a novel and highly stereoselective process for preparing gemcitabine, which is suitable for industrial production, wherein, it includes the following reactions. Additionally, the invention discloses the key intermediates. The definition for the groups of G1, G2, G3, G4, and G5 are described in the specification.
    本发明提供了一种新颖且高度立体选择性的制备吉西他滨的工艺,适用于工业生产,其中包括以下反应。此外,该发明还披露了关键中间体。G1、G2、G3、G4和G5组的定义在说明书中描述。
  • [EN] AN IMPROVED PROCESS FOR THE MANUFACTURE OF HIGH PURE GEMCITABINE HYDROCHLORIDE<br/>[FR] METHODE AMELIOREE DE PRODUCTION DE CHLORHYDRATE DE GEMCITABINE DE GRANDE PURETE
    申请人:POLTURI RAMESH BABU
    公开号:WO2005095430A1
    公开(公告)日:2005-10-13
    A process for the preparation of Gemcitabine hydrochloride of formula (I) of extra high purity by the reaction of (R) -2,3-0-isopropylidene glyceraldehyde of formula (II) with ethyl bromo difluoroacetate of formula (III) followed by hydrolytic cyclization of the product of formula (IV) converting the product into a dibenzoyl derivative of formula (V) of high purity reducing the product of formula (V) and converting the resultant lactol into a mesylate of formula (VI) followed by coupling the mesylate of formula (VI) with bis-silyl acetyl cytosine of formula (X) and subsequently deblocking and purifying.
    通过将式(II)的(R)-2,3-0-异丙基甘油醛与式(III)的溴二氟乙酸乙酯反应,然后对产物进行水解环化得到式(IV)的产物,将产物转化为高纯度的二苯甲酰衍生物(V)的过程,然后还原式(V)的产物并将所得的内酯转化为式(VI)的甲磺酸酯,随后将式(VI)的甲磺酸酯与式(X)的双硅基乙酰胞嘧啶偶联,最后去保护基和纯化。
  • PROCESS FOR PREPARING GEMCITABINE AND ASSOCIATED INTERMEDIATES
    申请人:Naddaka Vladimir
    公开号:US20070249823A1
    公开(公告)日:2007-10-25
    The present invention provides novel intermediates, which preferably include 3-substituted, alkyl 2,2-difluoro-3-hydroxy-3-(2,2-dialkyldioxolan-4-yl)-propionate derivatives, and 3,5-disubstituted-2-deoxy-2,2-difluoro-1-oxo-D-ribose derivatives. The present invention also provides processes for producing such intermediates and processes for producing gemcitabine therewith.
    本发明提供了新颖的中间体,其中包括3-取代的烷基2,2-二氟-3-羟基-3-(2,2-二烷基二氧杂环戊酮-4-基)-丙酸酯衍生物,以及3,5-二取代-2-脱氧-2,2-二氟-1-氧代-D-核糖衍生物。本发明还提供了生产这种中间体的方法以及生产吉西他滨的方法。
  • An efficient large-scale synthesis of gemcitabine employing a crystalline 2,2-difluoro-α-ribofuranosyl bromide
    作者:Young-Kil Chang、Jaeheon Lee、Gha-Seung Park、Moonsub Lee、Chul Hyun Park、Han Kyong Kim、Gwansun Lee、Bo-Young Lee、Ju Yuel Baek、Kwan Soo Kim
    DOI:10.1016/j.tet.2010.05.039
    日期:2010.7
    An efficient large-scale synthesis of gemcitabine was achieved without chromatography or fractional crystallization. The key steps include stereospecific conversion of a novel β-ribofuranosyl phosphate into a highly crystalline α-ribofuranosyl bromide and coupling of the α-ribofuranosyl bromide and trimethylsilyl cytosine to produce a β-nucleoside. p-Phenylbenzoyl group was introduced for the protection
    在没有色谱法或分级结晶的情况下,实现了吉西他滨的有效大规模合成。关键步骤包括将新型β-呋喃呋喃糖基磷酸酯立体定向转化为高度结晶的α-呋喃呋喃糖基溴化物,以及将α-呋喃呋喃糖基溴化物和三甲基甲硅烷基胞嘧啶偶联以产生β-核苷。为了增强中间体的结晶度,引入对苯基苯甲酰基用于保护羟基之一。通过蒸馏从反应介质中连续除去偶联反应过程中产生的三甲基甲硅烷基溴,大大提高了关键偶联反应的β-选择性。
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