12-epi-PGF_2α | 54324-23-1

• 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: 12-epi-PGF_2α
• 英文别名: (Z)-7-[(1R,2S,3R,5S)-3,5-dihydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]cyclopentyl]hept-5-enoic acid
• CAS: 54324-23-1
• 化学式: C₂₀H₃₄O₅
• 分子量: 354.487
• InChiKey: PXGPLTODNUVGFL-LBHGIJFJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  25
• 可旋转键数：
  12
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  98
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  12-epi-PGF_2α 、 三甲基硅烷化重氮甲烷 以 甲醇 、 正己烷 、 苯 为溶剂， 反应 6.0h， 以87%的产率得到methyl (Z)-7-[(1R,2S,3R,5S)-3,5-dihydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]cyclopentyl]hept-5-enoate
  参考文献：
  名称：

  Enantioselective Synthesis of 12-epi-PGF_2α and 12,15-diepi-PGF_2α

  摘要：

  An enantioselective synthesis of 12-epi-PGF(2 alpha), (3) and 12,15-diepi-PGF(2 alpha) (4), PG-like compounds that are probably generated in vivo by nonenzymatic, free-radical-induced peroxidation of arachidonic acid, has been achieved starting from the commercially available Corey lactone (9). The key strategy involves SmI2 reduction of the gamma,delta-epoxy-alpha,beta-unsaturated ester 7, followed by in situ trapping with hexanal; subsequent hydrogenation and decarboxylation affords the stereoselective construction of the lower side chain. This new method is expected to provide a convenient access to various PG-like isoprostanes derived from oxidation of arachidonic acid and cis-4,7,10,13,16,19-docosahexaenoic acid.

  DOI：

  10.1021/jo990906r
• 作为产物：
  描述：

  1-辛烯-3-醇 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 4-二甲氨基吡啶 、 2,2,6,6-tetramethyl-piperidine-N-oxyl 、 sodium tetrahydroborate 、 N-氯代丁二酰亚胺 、 9-borabicyclo[3.3.1]nonane dimer 、 四丁基氟化铵 、 四丁基氯化铵 、 碘 、 双(三甲基硅烷基)氨基钾 、 二异丁基氢化铝 、 三乙胺 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 甲苯 为溶剂， 反应 52.2h， 生成 12-epi-PGF_2α
  参考文献：
  名称：

  Stereodivergent Synthesis of All 15-F₂ Isoprostanes

  摘要：

  Isoprostanes, lipid metabolites generated from free radical oxidation of membrane-bound arachidonic acid, have been detected in organisms subjected to oxidative stress; however, the function and cellular targets of the isoprostanes are unclear. As an initial step toward studying the biological role of these molecules, we report the preparation of all known and anticipated 15-F2 isoprostanes. The stereodivergent strategy to the complete isoprostane library features a ring-opening metathesis to introduce the cis-alkyl side chains that are characteristic of this class of molecules. Resolution to the individual stereoisomers can be accomplished by either a catalytic asymmetric reduction or an auxiliary-based separation protocol. In either case, the individual isomers can be converted to the corresponding 15-F2 isoprostanes through a straightforward functionalization of the carboxylic acid-containing side chain. The availability of this complete 15-F2 isoprostane library, containing both known and anticipated lipid metabolites, allows for the first time the side-by-side evaluation of these compounds in a variety of biological assays.

  DOI：

  10.1021/ja027154u

文献信息

• Total synthesis of 12-epi-PGF2α
  作者：Seong-Woo Hwang、Mustafa Adiyaman、Subhash P. Khanapure、Joshua Rokach

  DOI：10.1016/0040-4039(95)02390-9

  日期：1996.2

  A novel synthesis of 12-epi-PGF2α5 is described. The key synthon 11, which has been used as a starting point for the synthesis, is produced by a radical cyclization process using thionocarbonate 9a. The radical cyclization of 9a to 11 has been studied in some detail.

  12-的一种新颖的合成外延-PGF 2α 5进行说明。用作合成起点的关键合成子11是通过使用硫代碳酸9a进行自由基环化过程制得的。已经对9a到11的自由基环化进行了详细的研究。
• Facile Preparation of (±)-12-Epiprostaglandins from 7-Oxabicyclo[2.2.1]hept-5-en-2-one<i>via</i>an all-<i>cis</i>-formyllactone related to<i>Corey</i>lactone
  作者：Jean-Paul Vionnet、Philippe Renaud

  DOI：10.1002/hlca.19940770710

  日期：1994.11.2

  The bicyclic monoselenoacetal 7, easily obtained from (±)-7-oxabicyclo[2.2.1]hept-5-en-2-one (6) via a radical addition-acyl migration sequence, was converted to racemic 12-epiprostaglandins 3 and 4. The key intermediate was the all-cis-formyllactone 2b related to Corey lactone (see 12; Scheme 1). The presence of a (tert-butyl)-dimethylsilyl protective group for the 11-OH substituent (prostaglandin

  容易地从（±）-7- oxabicyclo [2.2.1] hept-5-en-2-one（6）通过自由基加成酰基迁移序列获得的双环单硒缩醛7转化为外消旋的12-表塔格列汀3和4。关键中间体是与Corey内酯有关的全顺式-甲酰基内酯2b（参见12；方案1）。发现在11-OH取代基上存在（叔丁基）-二甲基甲硅烷基保护基（前列腺素编号）对于在Wittig - Horner期间避免β-消除和差向异构化至关重要反应（方案2）。在甲酰内酯阶段在C（12）上进行差向异构化（参见2b）也是可能的，并且可以得到天然存在的前列腺素和类似物的已知前体1b。
• Preparation of Isoprostanes and Neuroprostanes
  作者：Long Guo Quan、Jin Kun Cha

  DOI：10.1021/ja027451z

  日期：2002.10.1

  A new approach to isoprostanes and neuroprostanes featuring cis-dialkyl stereochemistry at the cyclopentane ring has been developed by employing an intramolecular cross-coupling reaction of an alkyl iodide and a tethered alkenylsiloxane for stereoselective installation of a functionalized omega-side chain.
• Organopalladium approaches to prostaglandins. 11. Synthesis of PGF2.alpha. and 12-epi PGF2.alpha. by the controlled, one step, palladium-promoted, intermolecular coupling of three different alkenes
  作者：Richard C. Larock、Nam Ho Lee

  DOI：10.1021/ja00020a083

  日期：1991.9
• CLARK, MIKE A.;CONWAY, THERESA M.;CROOKE, STANLEY T., J. LIQUID CHROMATOGR., 10,(1987) N 12, 2707-2719
  作者：CLARK, MIKE A.、CONWAY, THERESA M.、CROOKE, STANLEY T.

  DOI：——

  日期：——