tert-butyl N-[(1S,2R,3Z)-2-hydroxy-1-(hydroxymethyl)heptadec-3-enyl]carbamate | 117487-47-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: tert-butyl N-[(1S,2R,3Z)-2-hydroxy-1-(hydroxymethyl)heptadec-3-enyl]carbamate
• 英文别名: tert-butyl (3Z,1S,2R)-N-<2-hydroxy-1-(hydroxymethyl)-3heptadecenyl>carbamate；tert-butyl N-[(Z,2S,3R)-1,3-dihydroxyoctadec-4-en-2-yl]carbamate
• CAS: 117487-47-5
• 化学式: C₂₃H₄₅NO₄
• 分子量: 399.615
• InChiKey: UMUDVBSIURBUGW-SYCRRIHLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.9
• 重原子数：
  28
• 可旋转键数：
  18
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.87
• 拓扑面积：
  78.8
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  tert-butyl N-[(1S,2R,3Z)-2-hydroxy-1-(hydroxymethyl)heptadec-3-enyl]carbamate 在 盐酸 作用下， 以 1,4-二氧六环 、 水 为溶剂， 反应 0.5h， 生成 cis-(2S,3R)-sphingosine
  参考文献：
  名称：

  Synthesis of Cyclopropene Analogues of Ceramide and Their Effect on Dihydroceramide Desaturase

  摘要：

  The synthesis of several analogues of the N-[(1R,2S)-2-hydroxy-1-hydroxymethyl-2-(2-tridecyl-1-cyclopropenyl)ethyl]octanamide (GT11), the first reported inhibitor of dihydroceramide desaturase, as well as their effects on this enzyme, are described. Modifications of the parent structure include variations on the cyclopropene ring, the N-acyl chain length, the configuration of the stereocenters, and the hydroxyl group at C1. The key intermediates for the synthesis are the products resulting from the addition of suitable organolithium. compounds to either Garner's aldehyde or its enantiomer. The final products are obtained by TMSTf-induced cleavage of the protecting groups and N-acylation, both under specific conditions. An alternative method for N-Boc deprotection is also reported that allows us to obtain the cyclopropene analogue of sphingosine 12a, which can be transformed into GT11 upon acylation. The procedure consists of the conversion of the Garner aldehyde addition products into the bicyclic dihydrooxazolo[3,4,0]oxazol-3-ones 19 by transesterification in basic medium of the tert-butyl group with the hydroxyl function at C3. Mild cleavage of the N,O-isopropylidene cyclic acetal present in 19 affords the oxazolidin-2-one 20, which gives 12a upon saponification. Furthermore, compound 20 is also the key intermediate in the synthesis of the terminal deoxy, methoxy, and fluoro derivatives 9, 10, and 11, respectively. Determination of dihydroceramide desaturase activity in vitro showed that GT11 was a competitive inhibitor (K-i = 6 muM) and that its analogues with N-hexanoyl (6) and N-decanoyl (7) moieties inhibited the enzyme with similar potencies (IC50 = 13 and 31 muM, respectively). No decrease in dihydroceramide desaturase activity was observed with any of the other compounds tested.

  DOI：

  10.1021/jo030141u
• 作为产物：
  描述：

  1-十五炔 在 Lindlar's catalyst 正丁基锂 、 Amberlyst 15 、 氢气 、 zinc dibromide 作用下， 以 甲醇 、 乙酸乙酯 为溶剂， -78.0~25.0 ℃ 、101.33 kPa 条件下， 反应 43.0h， 生成 tert-butyl N-[(1S,2R,3Z)-2-hydroxy-1-(hydroxymethyl)heptadec-3-enyl]carbamate
  参考文献：
  名称：

  由L-丝氨酸合成D-赤型和D-苏式-鞘氨醇衍生物

  摘要：

  受保护的丝氨酸醛10转化为结晶Ñ -Boc保护的鞘氨醇6 - 9通过3步反应序列。将化合物10以高非对映选择性（95％）转化为分别为赤型或苏型炔烃17和18。的赤式异构体17通过加入形成为10锂pentadecyne的16在THF / HMPT在-78℃，而相应的苏式异构体18在ZnBr的存在下制备2在Et 2 O中。缩醛部分的脱保护得到1，3-二醇19和20。通过在Lindlar催化剂上进行部分加氢，将这些二醇用Red-Al选择性还原为（E）-鞘氨醇6和8或（Z） -异构体7和9。N- Boc基团的裂解和进一步转化为神经酰胺很容易实现，这是通过将6转化为N-十八烷酰基-D-赤型-鞘氨醇5来实现的。

  DOI：

  10.1002/hlca.19880710208

文献信息

• Synthesis ofD-Erythro- andD-Threo-Sphingosine Derivatives FromL-Serine
  作者：Peter Herold

  DOI：10.1002/hlca.19880710208

  日期：1988.3.16

  The protected serine aldehyde 10 was converted to the crystalline N-Boc-protected sphingosines 6–9 by a three-step reaction sequence. Compound 10 was transformed with high diastereoselectivity (95%) either to the erythro- or threo-alkynols, 17 and 18, respectively. The erythro-isomer 17 is formed by the addition to 10 of lithium pentadecyne 16 in THF/HMPT at −78°, whereas the corresponding threo-isomer

  受保护的丝氨酸醛10转化为结晶Ñ -Boc保护的鞘氨醇6 - 9通过3步反应序列。将化合物10以高非对映选择性（95％）转化为分别为赤型或苏型炔烃17和18。的赤式异构体17通过加入形成为10锂pentadecyne的16在THF / HMPT在-78℃，而相应的苏式异构体18在ZnBr的存在下制备2在Et 2 O中。缩醛部分的脱保护得到1，3-二醇19和20。通过在Lindlar催化剂上进行部分加氢，将这些二醇用Red-Al选择性还原为（E）-鞘氨醇6和8或（Z） -异构体7和9。N- Boc基团的裂解和进一步转化为神经酰胺很容易实现，这是通过将6转化为N-十八烷酰基-D-赤型-鞘氨醇5来实现的。
• HEROLD, PETER, HELV. CHIM. ACTA, 71,(1988) N 2, 354-362
  作者：HEROLD, PETER

  DOI：——

  日期：——
• Synthesis of Cyclopropene Analogues of Ceramide and Their Effect on Dihydroceramide Desaturase
  作者：Gemma Triola、Gemma Fabriàs、Josefina Casas、Amadeu Llebaria

  DOI：10.1021/jo030141u

  日期：2003.12.1

  The synthesis of several analogues of the N-[(1R,2S)-2-hydroxy-1-hydroxymethyl-2-(2-tridecyl-1-cyclopropenyl)ethyl]octanamide (GT11), the first reported inhibitor of dihydroceramide desaturase, as well as their effects on this enzyme, are described. Modifications of the parent structure include variations on the cyclopropene ring, the N-acyl chain length, the configuration of the stereocenters, and the hydroxyl group at C1. The key intermediates for the synthesis are the products resulting from the addition of suitable organolithium. compounds to either Garner's aldehyde or its enantiomer. The final products are obtained by TMSTf-induced cleavage of the protecting groups and N-acylation, both under specific conditions. An alternative method for N-Boc deprotection is also reported that allows us to obtain the cyclopropene analogue of sphingosine 12a, which can be transformed into GT11 upon acylation. The procedure consists of the conversion of the Garner aldehyde addition products into the bicyclic dihydrooxazolo[3,4,0]oxazol-3-ones 19 by transesterification in basic medium of the tert-butyl group with the hydroxyl function at C3. Mild cleavage of the N,O-isopropylidene cyclic acetal present in 19 affords the oxazolidin-2-one 20, which gives 12a upon saponification. Furthermore, compound 20 is also the key intermediate in the synthesis of the terminal deoxy, methoxy, and fluoro derivatives 9, 10, and 11, respectively. Determination of dihydroceramide desaturase activity in vitro showed that GT11 was a competitive inhibitor (K-i = 6 muM) and that its analogues with N-hexanoyl (6) and N-decanoyl (7) moieties inhibited the enzyme with similar potencies (IC50 = 13 and 31 muM, respectively). No decrease in dihydroceramide desaturase activity was observed with any of the other compounds tested.