<4R-(4α,4(R*),5β)>-5-<<<(1,1-dimethylethyl)dimethylsilyl>oxy>methyl>-β-methyl-2,2-dimethyl-1,3-dioxane-4-heptanol | 145668-51-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: <4R-(4α,4(R*),5β)>-5-<<<(1,1-dimethylethyl)dimethylsilyl>oxy>methyl>-β-methyl-2,2-dimethyl-1,3-dioxane-4-heptanol
• 英文别名: [4R-(4α,4(R*),5β)]-5-({[(1,1-dimethylethyl)dimethylsilyl]oxy}methyl)-β-methyl-2,2-dimethyl-1,3-dioxane-4-heptanol；(3R)-7-[(4R,5R)-5-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,2-dimethyl-1,3-dioxan-4-yl]-3-methylheptan-1-ol
• CAS: 145668-51-5
• 化学式: C₂₁H₄₄O₄Si
• 分子量: 388.663
• InChiKey: MRAMKOBVIHTPRH-GUDVDZBRSA-N

物化性质

• 沸点：
  451.1±30.0 °C(predicted)
• 密度：
  0.917±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.35
• 重原子数：
  26
• 可旋转键数：
  11
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  47.9
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  <4R-(4α,4(R*),5β)>-5-<<<(1,1-dimethylethyl)dimethylsilyl>oxy>methyl>-β-methyl-2,2-dimethyl-1,3-dioxane-4-heptanol 在 草酰氯 、 potassium tert-butylate 、 二甲基亚砜 作用下， 以 四氢呋喃 为溶剂， 生成 <4R-(4α,4(R*),5β)>-5-<<<(1,1-dimethylethyl)dimethylsilyl>oxy>methyl>-2,2-dimethyl-4-(5-methyl-7-octynyl)-1,3-dioxane
  参考文献：
  名称：

  Total synthesis of 1233A

  摘要：

  The total synthesis of the HMG-CoA synthase inhibitor 1233A (1), starting from either (R)-pulegone (6) or diketo ester 12, is described. The key transformations included the diastereoselective [2,3] rearrangements of allylic ethers 9 and 19 to alcohols 10 and 11b, respectively, and the diastereoselective hydroboration of 11b to form 19. A Pd-mediated coupling of iodo olefin 31a with tert-butyl crotonate under newly devised conditions provides an efficient preparation of the diene portion of 1233A.

  DOI：

  10.1021/jo00056a013
• 作为产物：
  描述：

  -1-<2-(acetyloxy)-4-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-3-methylene-1-butyl>-4-methylcyclohexene 在 吡啶 、 4-二甲氨基吡啶 、 sodium tetrahydroborate 、 三乙基硼氢化锂 、 potassium carbonate 、 臭氧 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 6.17h， 生成 <4R-(4α,4(R*),5β)>-5-<<<(1,1-dimethylethyl)dimethylsilyl>oxy>methyl>-β-methyl-2,2-dimethyl-1,3-dioxane-4-heptanol
  参考文献：
  名称：

  Total synthesis of 1233A

  摘要：

  The total synthesis of the HMG-CoA synthase inhibitor 1233A (1), starting from either (R)-pulegone (6) or diketo ester 12, is described. The key transformations included the diastereoselective [2,3] rearrangements of allylic ethers 9 and 19 to alcohols 10 and 11b, respectively, and the diastereoselective hydroboration of 11b to form 19. A Pd-mediated coupling of iodo olefin 31a with tert-butyl crotonate under newly devised conditions provides an efficient preparation of the diene portion of 1233A.

  DOI：

  10.1021/jo00056a013

文献信息

• Convergent synthesis of a key intermediate for hypocholesterolemic agent 1233A, starting from methyl 3-hydroxy-2-methylpropanoate and asymmetrized bis(hydroxymethyl)acetaldehyde (BHYMA*)
  作者：Giuseppe Guanti、Luca Banfi、Giovanna Schmid

  DOI：10.1016/s0040-4039(00)73162-5

  日期：1994.6

  Compound 2, which is a known intermediate for the total synthesis of hypocholesterolemic agent 1233A 1, has been synthesized in good overall yield through a convergent approach, employing 3-hydroxy-2-methylpropanoate 6 and BHYMA* 5 as chiral building blocks.

  化合物2是降胆固醇药1233A 1的总合成的已知中间体，已通过收敛方法以3-羟基-2-甲基丙酸酯6和BHYMA * 5为手性结构单元以高收率合成了化合物2 。