2-cyanoethyl 16-hydroxyhexadecanate | 497070-10-7

• 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: 2-cyanoethyl 16-hydroxyhexadecanate
• CAS: 497070-10-7
• 化学式: C₁₉H₃₅NO₃
• 分子量: 325.492
• InChiKey: ILIMUOUPRSQURS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  23.0
• 可旋转键数：
  17.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  70.32
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  2-cyanoethyl 16-hydroxyhexadecanate 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 吡啶 、 N,N-二甲基甲酰胺 为溶剂， 反应 4.5h， 生成 16-{[6-N-benzoyl-5'-O-(4,4'-dimethoxytrityl)deoxyadenosin-3'-O-yl](diisopropyl)silyloxy}hexadecanoic acid
  参考文献：
  名称：

  摘要：

  In connection with the synthesis of guanosine-capped of oligodeoxynucleotides on polymer supports, we found an unprecedented Si-O bond cleavage reaction, which occurred when polymer-linked oligodeoxynucleoticles having unprotected internucleotidic phosphate groups were allowed to react with the guanosine 5'-phosphorimidazolide derivative 18 in the presence of 4-nitro-6-(trifluoromethyl)-1H-benzotriazol-1-ol (Ntbt-OH) as an effective activator in pyridine. This side reaction was confirmed by the fact that the liquid-phase reaction of DMTrTpT-O-Si(iPr(2))OEt 42 with a simpler model compound. methyl phosphorimidazolide 34. in the presence of Ntbt-OH gave DMTrTpT 43. It turned out that the side reaction hardly occurs without unprotected internucleotidic phosphate groups on oligodeoxyriucleotides. The detailed study of this side reaction disclosed that Ntbt-OH directly attacks the Si-atom to release oligonucleotides from the resin. It is likely that Ntbt-OH serves as a very strong nucleophile in pyridine, especially to the Si-atom of the linker.

  DOI：

  10.1002/1522-2675(200209)85:9<2930::aid-hlca2930>3.0.co;2-2
• 作为产物：
  描述：

  16-羟基棕榈酸 、 3-羟基丙腈 在 N,N'-二环己基碳二亚胺 作用下， 以 吡啶 为溶剂， 反应 24.5h， 以67%的产率得到2-cyanoethyl 16-hydroxyhexadecanate
  参考文献：
  名称：

  摘要：

  In connection with the synthesis of guanosine-capped of oligodeoxynucleotides on polymer supports, we found an unprecedented Si-O bond cleavage reaction, which occurred when polymer-linked oligodeoxynucleoticles having unprotected internucleotidic phosphate groups were allowed to react with the guanosine 5'-phosphorimidazolide derivative 18 in the presence of 4-nitro-6-(trifluoromethyl)-1H-benzotriazol-1-ol (Ntbt-OH) as an effective activator in pyridine. This side reaction was confirmed by the fact that the liquid-phase reaction of DMTrTpT-O-Si(iPr(2))OEt 42 with a simpler model compound. methyl phosphorimidazolide 34. in the presence of Ntbt-OH gave DMTrTpT 43. It turned out that the side reaction hardly occurs without unprotected internucleotidic phosphate groups on oligodeoxyriucleotides. The detailed study of this side reaction disclosed that Ntbt-OH directly attacks the Si-atom to release oligonucleotides from the resin. It is likely that Ntbt-OH serves as a very strong nucleophile in pyridine, especially to the Si-atom of the linker.

  DOI：

  10.1002/1522-2675(200209)85:9<2930::aid-hlca2930>3.0.co;2-2