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ethyl 3-[(S)-3-(tert-butoxycarbonyl)-2,2-dimethyloxazolidin-4-yl]-2-(trifluoromethyl)propanoate | 496848-29-4

中文名称
——
中文别名
——
英文名称
ethyl 3-[(S)-3-(tert-butoxycarbonyl)-2,2-dimethyloxazolidin-4-yl]-2-(trifluoromethyl)propanoate
英文别名
——
ethyl 3-[(S)-3-(tert-butoxycarbonyl)-2,2-dimethyloxazolidin-4-yl]-2-(trifluoromethyl)propanoate化学式
CAS
496848-29-4
化学式
C16H26F3NO5
mdl
——
分子量
369.381
InChiKey
XTKBQMZBXJIBLX-NFJWQWPMSA-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):
    3.49
  • 重原子数:
    25.0
  • 可旋转键数:
    4.0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.88
  • 拓扑面积:
    65.07
  • 氢给体数:
    0.0
  • 氢受体数:
    5.0

上下游信息

  • 上游原料
    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

  • Synthesis of Boc-protected cis- and trans-4-trifluoromethyl-d-prolines
    作者:Xiao-long Qiu、Feng-ling Qing
    DOI:10.1039/b206719f
    日期:2002.9.11
    Both Boc-protected trans- and cis-4-trifluoromethyl prolines were synthesized starting from L-serine simultaneously. In our synthetic route, the key intermediate 4 was obtained through the reaction of Garner's aldehyde 1 with ylide 2 followed by trifluoromethylation with FSO2CF2COOMe–CuI. After hydrogenation followed by reduction of 4, the alcohol 5 was obtained in low diastereoselectivity, however, the two diastereoisomers could be separated easily by flash chromatography in the following steps. The bromide 8b obtained from the alcohol 5 in a straightforward fashion could not afford the desired cyclization product because of the strong electron-withdrawing properties of the trifluoromethyl group and the low ability of bromide as a leaving group. Instead, mesylation of alcohols 12a and 12b followed by treatment with potassium bis(trimethylsilyl)amide (KHMDS) afforded the desired cyclization products 13a and 13b respectively, which were transformed into Boc-protected cis- and trans-4-trifluoromethyl-D-prolines in a straightforward fashion.
    同时从L-丝氨酸出发,合成了Boc保护的反式和顺式4-三甲基酸。在我们的合成路线中,关键中间体4是通过加纳醛1与亚胺2反应,然后用FSO2CF2COOMe-CuI进行三甲基化反应获得的。在4化和还原后,获得了低立体选择性醇5,然而,通过以下步骤的快速色谱法可以很容易地将两种非对映异构体分离。由于三甲基基团的强吸电子性和化物作为离开基团的低能力,从醇5中直接获得的化物8b不能提供所需的环化产物。相反,醇12a和12b的甲磺化,然后用双(三甲基基)(KHMDS)处理,分别得到了所需的环化产物13a和13b,它们被直接转化为Boc保护的顺式和反式4-三甲基-D-脯氨酸
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