2,4-di-tert-butoxy-5-fluoropyrimidine | 58090-53-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2,4-di-tert-butoxy-5-fluoropyrimidine
• 英文别名: 5-fluoro-2,4-bis[(2-methylpropan-2-yl)oxy]pyrimidine
• CAS: 58090-53-2
• 化学式: C₁₂H₁₉FN₂O₂
• 分子量: 242.293
• InChiKey: YYEGXNAVFHRDLI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  44.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  potassium tert-butylate 、 2,4-二氯-5-氟嘧啶 以 四氢呋喃 为溶剂， 反应 2.0h， 以60%的产率得到2,4-di-tert-butoxy-5-fluoropyrimidine
  参考文献：
  名称：

  通过金属转移反应，可以从[18F]氟化物合成用于人类PET成像的[18F] 5-氟尿嘧啶。

  摘要：

  Translation of new F-18-fluorination reactions to produce radiotracers for human positron emission tomography (PET) imaging is rare because the chemistry must have useful scope and the process for F-18-labeled tracer production must be robust and simple to execute. The application of transition metal mediators has enabled impactful F-18-fluorination methods, but to date none of these reactions have been applied to produce a human-injectable PET tracer. In this article we present chemistry and process innovations that culminate in the first production from [F-18]fluoride of human doses of [F-18]5-fluorouracil, a PET tracer for cancer imaging in humans. The first preparation of nickel 6-aryl complexes by transmetalation from arylboronic acids or esters was developed and enabled the synthesis of the [F-18]5-fluorouracil precursor. Routine production of >10 mCi doses of [F-18]5-fluorouracil was accomplished with a new instrument for azeotrope-free [F-18]fluoride concentration in a process that leverages the tolerance of water in nickel-mediated F-18-fluorination.

  DOI：

  10.1021/acs.organomet.6b00059

文献信息

• Studies on antitumor agents. V. Syntheses and antitumor activities of 5-fluorouracil derivatives.
  作者：JUNICHI YAMASHITA、ICHIRO YAMAWAKI、SHUICHI UEDA、MITSUGI YASUMOTO、NORIO UNEMI、SADAO HASHIMOTO

  DOI：10.1248/cpb.30.4258

  日期：——

  Six types of 5-fluorouracil (5-FU) derivatives were synthesized ; namely, 2, 4-di-O-substituted, 2-O-substituted, 4-O-substituted, 1, 3-disubstituted, 1-substituted and 3-substituted compounds. After oral administration of these compounds to rats, the blood levels of 5-FU were determined. Among O-substituted derivatives, a 4-O-substituted derivative was most easily activated to 5-FU and 2-O-substituted derivatives were next most easily activated. Among N-substituted derivatives, acyl and sulfonyl derivatives showed the highest 5-FU releasing abilities and 1-alkoxymethyl substituted derivatives showed low ability. N-Alkyl substituted derivatives were not activated to 5-FU. Several compounds which gave higher blood levels of 5-FU than that obtained with 1-(tetrahydro-2-furyl)-5-fluorouracil (Thf-FU), as well as same related compounds, were selected and their antitumor activities were examined. The 2-O-substituted derivatives, 2-butoxy-5-fluoro-4 (1H)-pyrimidone (11) and 2-benzyloxy-5-fluoro-4 (1H)-pyrimidone (19), were as effective as Thf-FU. The activities of 2, 4-di-O-substituted derivatives, 2, 4-dibutoxy-5-fluoropyrimidine (1) and 2, 4-dibenzyloxy-5-fluoropyrimidine (6), against Ehrlich carcinoma and against sarcoma 180, respectively, were the same as those of Thf-FU. The 1-substituted derivatives, 1-ethoxymethyl-5-fluorouracil (49) and 1-(1-ethoxy-1-phenylmethyl)-5-fluorouracil (50), were found to be as effective as Thf-FU.

  合成了六类氟尿嘧啶（5-FU）衍生物，即2,4-二-O-取代、2-O-取代、4-O-取代、1,3-二取代、1-取代和3-取代的化合物。在大鼠口服这些化合物后，测定了5-FU的血药浓度。在O-取代衍生物中，4-O-取代衍生物最容易被激活为5-FU，其次是2-O-取代衍生物。在N-取代衍生物中，酰基和磺酰基衍生物显示出最高的5-FU释放能力，1-烷氧甲基取代衍生物的释放能力较低。N-烷基取代衍生物未被激活为5-FU。选择了几种在血中5-FU水平高于1-(四氢-2-呋喃基)-5-氟尿嘧啶（Thf-FU）的化合物，以及一些相关化合物，并对其抗肿瘤活性进行了检测。2-O-取代衍生物，2-丁氧基-5-氟-4(1H)-嘧啶酮（11）和2-苄氧基-5-氟-4(1H)-嘧啶酮（19），与Thf-FU一样有效。2,4-二-O-取代衍生物，2,4-二丁氧基-5-氟嘧啶（1）和2,4-二苄氧基-5-氟嘧啶（6），对艾氏癌和肉瘤180的活性与Thf-FU相同。1-取代衍生物，1-乙氧甲基-5-氟尿嘧啶（49）和1-(1-乙氧基-1-苯甲基)-5-氟尿嘧啶（50），发现与Thf-FU一样有效。
• YAMASHITA, JUN-ICHI;YAMAWAKI, ICHIRO;UEDA, SHUICHI;YASUMOTO, MITSUGI;UNEM+, CHEM. AND PHARM. BULL., 1982, 30, N 12, 4258-4267
  作者：YAMASHITA, JUN-ICHI、YAMAWAKI, ICHIRO、UEDA, SHUICHI、YASUMOTO, MITSUGI、UNEM+

  DOI：——

  日期：——
• A Transmetalation Reaction Enables the Synthesis of [¹⁸F]5-Fluorouracil from [¹⁸F]Fluoride for Human PET Imaging
  作者：Andrew J. Hoover、Mark Lazari、Hong Ren、Maruthi Kumar Narayanam、Jennifer M. Murphy、R. Michael van Dam、Jacob M. Hooker、Tobias Ritter

  DOI：10.1021/acs.organomet.6b00059

  日期：2016.4.11

  Translation of new F-18-fluorination reactions to produce radiotracers for human positron emission tomography (PET) imaging is rare because the chemistry must have useful scope and the process for F-18-labeled tracer production must be robust and simple to execute. The application of transition metal mediators has enabled impactful F-18-fluorination methods, but to date none of these reactions have been applied to produce a human-injectable PET tracer. In this article we present chemistry and process innovations that culminate in the first production from [F-18]fluoride of human doses of [F-18]5-fluorouracil, a PET tracer for cancer imaging in humans. The first preparation of nickel 6-aryl complexes by transmetalation from arylboronic acids or esters was developed and enabled the synthesis of the [F-18]5-fluorouracil precursor. Routine production of >10 mCi doses of [F-18]5-fluorouracil was accomplished with a new instrument for azeotrope-free [F-18]fluoride concentration in a process that leverages the tolerance of water in nickel-mediated F-18-fluorination.