(4R)-4,7,7-trimethyl-3-exo-(1-naphthyl)bicyclo<2.2.1>heptan-2-exo-yl (E,3S,5R)-3,5-dihydroxy-7-phenyl-6-heptenoate | 135972-31-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: (4R)-4,7,7-trimethyl-3-exo-(1-naphthyl)bicyclo<2.2.1>heptan-2-exo-yl (E,3S,5R)-3,5-dihydroxy-7-phenyl-6-heptenoate
• 英文别名: (4R)-4,7,7-trimethyl-3-exo-(1-naphthyl)bicyclo<2.2.1>heptan-2-exo-yl (3S,5R,6E)-7-phenyl-3,5-dihydroxy-6-heptenoate；[(1S,2R,3R,4S)-4,7,7-trimethyl-3-naphthalen-1-yl-2-bicyclo[2.2.1]heptanyl] (E,3S,5R)-3,5-dihydroxy-7-phenylhept-6-enoate
• CAS: 135972-31-5
• 化学式: C₃₃H₃₈O₄
• 分子量: 498.662
• InChiKey: BNAHOWPRNSGDFW-BXZFOOCCSA-N

物化性质

• 沸点：
  665.3±55.0 °C(Predicted)
• 密度：
  1.19±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.9
• 重原子数：
  37
• 可旋转键数：
  9
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  66.8
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (4R)-4,7,7-trimethyl-3-exo-(1-naphthyl)bicyclo<2.2.1>heptan-2-exo-yl (E,3S,5R)-3,5-dihydroxy-7-phenyl-6-heptenoate 在 sodium hydroxide 作用下， 以 甲醇 、 甲苯 为溶剂， 生成 4(S),6(S)-4-hydroxy-6-(2-phenylethyl)tetrahydropyran-2-one
  参考文献：
  名称：

  Enantioselective synthesis of .beta.-hydroxy .delta.-lactones: a new approach to the synthetic congeners of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors

  摘要：

  Chiral beta,delta-diketo esters derived from Taber's chiral alcohol or its enantiomer were reduced either in one step (Et2BOMe, NaBH4, THF-MeOH) or in two steps (2 equiv HAl(i-Bu)2, THF; Et2BOMe, NaBH4, THF-MeOH) to give syn-beta,delta-dihydroxy esters with high diastereoselectivity. Hydrolysis of the esters followed by lactonization afforded the title lactones of high optical purity ranging from 49 to > 97% ee.

  DOI：

  10.1021/jo00020a008
• 作为产物：
  描述：

  (4R)-4,7,7-trimethyl-3-exo-(1-naphthyl)bicyclo<2.2.1>heptan-2-exo-yl (E)-7-phenyl-3,5-dioxo-6-heptenoate 在 甲醇 、 sodium tetrahydroborate 、 二乙基甲氧基硼烷 作用下， 生成 (4R)-4,7,7-trimethyl-3-exo-(1-naphthyl)bicyclo<2.2.1>heptan-2-exo-yl (E,3S,5R)-3,5-dihydroxy-7-phenyl-6-heptenoate
  参考文献：
  名称：

  Stereoselective Reduction ofβ,δ-Diketo Esters. A Novel Strategy for the Synthesis of Artificial HMG-CoA Reductase Inhibitors

  摘要：

  N-甲氧基-N-甲基酰胺与乙酰乙酸酯的二阴离子缩合，高产率地得到了β，δ-二酮酯，这些二酮酯在四氢呋喃-甲醇中与Et2BOMe-NaBH4还原，高度选择性地一步得到syn-β，δ-二羟基酯。类似地，Taber的手性醇或其对映体的β，δ-二酮酯分别还原得到中等对映体纯度的syn-β,δ-二羟基酯。通过先后使用二异丁基铝烷和Et2BOMe-NaBH4还原Taber的手性醇或其对映体的β,δ-二酮酯，获得了更高的非对映选择性和对映选择性。得到的syn-二醇酯经水解和内酯化得到多种常见于人工HMG-CoA还原酶抑制剂中的β-羟基-δ-内酯。

  DOI：

  10.1246/bcsj.68.350

文献信息

• Synthesis of Artificial HMG-CoA Reductase Inhibitors Based on the Olefination Strategy
  作者：Tamejiro Hiyama、Tatsuya Minami、Kyoko Takahashi

  DOI：10.1246/bcsj.68.364

  日期：1995.1

  Synthetic methods were studied for optically active 6-oxo-3,5-isopropylidenedioxyhexanoate esters (4), which could be used as a key precursor of various kinds of artificial analogs of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors. An enantiomer (+)-4 was prepared by asymmetric reduction of β,δ-diketo esters derived from the Taber’s alcohol or l-tartrate followed by a series of chemical transformations, and the desired enantiomer (−)-4 was prepared by the same asymmetric reduction starting from d-tartrate. The key intermediate (−)-4 was finally converted into a highly potent HMG-CoA reductase inhibitor, NK-104.

  研究了合成光学活性6-氧代-3,5-异丙基二氧六酸酯（4）的方法，这些化合物可作为各种人工类3-羟基-3-甲基戊二酸酰辅酶A（HMG-CoA）还原酶抑制剂的关键前体。通过对来自塔贝酒精或l-酒石酸盐的β,δ-二酮酯进行不对称还原，制备了对映异构体(+)-4，随后经过一系列化学转化，最终得到所需的对映异构体(−)-4，并通过相同的不对称还原方法从d-酒石酸盐出发制得。关键中间体(−)-4最终转化为一种高效的HMG-CoA还原酶抑制剂NK-104。
• A novel enantioselective synthesis of HMG Co-A reductase inhibitor NK-104 and a related compound
  作者：Tatsuya Minami、Tamejiro Hiyama

  DOI：10.1016/s0040-4039(00)60814-6

  日期：——

  Optically active methyl 6-oxo-3.5-syn-isopropylidenedioxyhexanoate (5) was prepared by enantioselective syn-reduction of beta,delta-diketo ester 2, followed by hydrolysis, protection of the diol moiety and ozonolysis, and was converted into a highly potent HMG Co-A reductase inhibitor NK-104 and an analogue.
• Stereoselective Reduction of<i>β</i>,<i>δ</i>-Diketo Esters. A Novel Strategy for the Synthesis of Artificial HMG-CoA Reductase Inhibitors
  作者：Tamejiro Hiyama、Guntoori Bhaskar Reddy、Tatsuya Minami、Takeshi Hanamoto

  DOI：10.1246/bcsj.68.350

  日期：1995.1

  Condensation of N-methoxy-N-methyl amides with the dianions of acetoacetates gives in good yields β,δ-diketo esters, which are reduced with Et2BOMe–NaBH4 in tetrahydrofuran–methanol highly selectively to give syn-β,δ-dihydroxy esters in one step. Similarly, the β,δ-diketo esters of the Taber’s chiral alcohol or its enantiomer respectively are reduced to give syn-β,δ-dihydroxy esters of moderate enantiomeric excess. Higher diastereo- and enantioselectivity were achieved by reduction of the β,δ-diketo esters of the Taber’s chiral alcohol or its enantiomer successively with diisobutylalane and with Et2BOMe–NaBH4. The resulting syn-diol esters were hydrolyzed and lactonized to give various types of β-hydroxy-δ-lactones commonly found in artificial HMG-CoA reductase inhibitors.

  N-甲氧基-N-甲基酰胺与乙酰乙酸酯的二阴离子缩合，高产率地得到了β，δ-二酮酯，这些二酮酯在四氢呋喃-甲醇中与Et2BOMe-NaBH4还原，高度选择性地一步得到syn-β，δ-二羟基酯。类似地，Taber的手性醇或其对映体的β，δ-二酮酯分别还原得到中等对映体纯度的syn-β,δ-二羟基酯。通过先后使用二异丁基铝烷和Et2BOMe-NaBH4还原Taber的手性醇或其对映体的β,δ-二酮酯，获得了更高的非对映选择性和对映选择性。得到的syn-二醇酯经水解和内酯化得到多种常见于人工HMG-CoA还原酶抑制剂中的β-羟基-δ-内酯。
• Enantioselective synthesis of .beta.-hydroxy .delta.-lactones: a new approach to the synthetic congeners of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors
  作者：G. Bhaskar Reddy、Tatsuya Minami、Takeshi Hanamoto、Tamejiro Hiyama

  DOI：10.1021/jo00020a008

  日期：1991.9

  Chiral beta,delta-diketo esters derived from Taber's chiral alcohol or its enantiomer were reduced either in one step (Et2BOMe, NaBH4, THF-MeOH) or in two steps (2 equiv HAl(i-Bu)2, THF; Et2BOMe, NaBH4, THF-MeOH) to give syn-beta,delta-dihydroxy esters with high diastereoselectivity. Hydrolysis of the esters followed by lactonization afforded the title lactones of high optical purity ranging from 49 to > 97% ee.