18-<123I>iodo-17-octadecenoic acid | 87640-14-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 18-<123I>iodo-17-octadecenoic acid
• CAS: 87640-14-0
• 化学式: C₁₈H₃₃IO₂
• 分子量: 404.459
• InChiKey: PJRCYRMJRNARKY-WUWXRDMBSA-N

反应信息

• 作为产物：
  描述：

  在 sodium hydroxide 作用下， 以 乙醇 为溶剂， 反应 1.0h， 生成 18-<123I>iodo-17-octadecenoic acid
  参考文献：
  名称：

  Synthesis and evaluation of radioiodinated (E)-18-iodo-17-octadecenoic acid as a model iodoalkenyl fatty acid for myocardial imaging

  摘要：

  125I-labeled (E)-18-iodo-17-octadecenoic acid (13) has been prepared and evaluated in rats to determine the myocardial uptake and retention and degree of in vivo deiodination of this model iodovinyl-substituted fatty acid, which contains no structural perturbation to inhibit metabolism. This new agent was prepared by NaI-chloramine-T treatment of (17-carbomethoxyheptadec-1-en-1-yl)boronic acid (11) prepared by catecholborane treatment of methyl 17-octadecynoate (10), followed by basic hydrolysis to the free acid (13). The pivotal substrate, 17-octadecynoic acid (9), was prepared by two new routes. The 125I-labeled acid 13 showed high myocardial uptake (1 h, 1.90-2.28% dose/g) with 45% washout after 2 h but lower heart/blood ratios in comparison to analogues containing the tellurium heteroatom. Deiodination was low for the first 2 h after injection (2 h, 61% dose/g). Excellent myocardial images were obtained in a dog with the 123I-labeled agent.

  DOI：

  10.1021/jm00367a021