4-C-(3,7-anhydro-1,1,2,2-tetradehydro-1,2-D-glycero-D-galactooctityl)-L-phenylalanine | 219826-31-0

• 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: 4-C-(3,7-anhydro-1,1,2,2-tetradehydro-1,2-D-glycero-D-galactooctityl)-L-phenylalanine
• 英文别名: (2S)-2-amino-3-[4-[2-[(2S,3R,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]ethynyl]phenyl]propanoic acid
• CAS: 219826-31-0
• 化学式: C₁₇H₂₁NO₇
• 分子量: 351.356
• InChiKey: OPMAGCCWVKSUGD-KXKVQDCLSA-N

物化性质

• 沸点：
  639.953±55.00 °C(Press: 760.00 Torr)(predicted)
• 密度：
  1.515±0.10 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -3.5
• 重原子数：
  25
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  154
• 氢给体数：
  6
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  9-芴甲基-N-琥珀酰亚胺基碳酸酯 、 4-C-(3,7-anhydro-1,1,2,2-tetradehydro-1,2-D-glycero-D-galactooctityl)-L-phenylalanine 在 potassium carbonate 作用下， 以 丙酮 为溶剂， 反应 12.0h， 以85%的产率得到N^α-(fluoren-9-ylmethoxycarbonyl)-4-C-(3,7-anhydro-1,1,2,2-tetradehydro-1,2-D-glycero-D-galactooctityl)-L-phenylalanine
  参考文献：
  名称：

  Novel Type of Rigid C-Linked Glycosylacetylene−Phenylalanine Building Blocks for Combinatorial Synthesis of C-linked Glycopeptides

  摘要：

  C-linked 3- and 4-(glycosylacetylene)-Fmoc-phenylalanines were synthesized as rigid building blocks for synthesis of libraries of neoglycopeptide templates. Perbenzylated 1,5-galactonolactone, 1,5-gluconolactone, and 1,5-mannonolactone were reacted with cerium TMS-acetylide and the products reduced to the C-glycosylacetylene-TMS derivatives. The gluco and galacto configurations yielded exclusively the beta-C-glycoside, whereas the mannonolactone gave a mixture of alpha-C- and beta-C-anomer. The products were subjected to acetolysis and TMS cleavage. The resulting peracetylated glycosylacetylenes were cross-coupled with the (R,S)-N-alpha-acetyl-3- and 4-iodophenylalanine O-methyl esters by Pd(0) catalysis in piperidine to give the eight possible C-linked glycosyl amino acid building blocks 33-40 as diastereomeric pairs. These were O-deacetylated. As an example of further conversion into neoglycopeptide templates the N-acetyl group of the 4-linked galacto-diastereomeric pair 43 was hydrolyzed selectively by acylase 1 and separated from the (R)stereoisomer. The product was converted to 4-(beta-C-galactosylacetylene)(N-alpha-Fmoc-)-L-phenylalanine (52) by reaction with Fmoc-OSu. Acid hydrolysis of galactosyl acetylene phenyl alanine 43 at elevated temperature afforded the conversion of the acetylene to the 1'-oxo derivative which was also N-alpha-Fmoc protected. The building blocks were used in the glycopeptide synthesis of three neoglycopeptide templates 54, 55, and 56 known to bind to murine MHC class II E-k and to present the glycan for interaction with the T-cell receptor. This template has previously been employed to elicit a carbohydrate specific T-cell response.

  DOI：

  10.1021/jo980517h
• 作为产物：
  描述：

  3,7-anhydro-4,5,6,8-tetra-O-benzyl-1,1,2,2-tetradehydro-1,2-D-glycero-L-mannooctitol 在 哌啶 、 吡啶 、 甲醇 、 copper(l) iodide 、 四(三苯基膦)钯 、 三氟甲磺酸三甲基硅酯 、 sodium 作用下， 反应 123.0h， 生成 4-C-(3,7-anhydro-1,1,2,2-tetradehydro-1,2-D-glycero-D-galactooctityl)-L-phenylalanine
  参考文献：
  名称：

  Novel Type of Rigid C-Linked Glycosylacetylene−Phenylalanine Building Blocks for Combinatorial Synthesis of C-linked Glycopeptides

  摘要：

  C-linked 3- and 4-(glycosylacetylene)-Fmoc-phenylalanines were synthesized as rigid building blocks for synthesis of libraries of neoglycopeptide templates. Perbenzylated 1,5-galactonolactone, 1,5-gluconolactone, and 1,5-mannonolactone were reacted with cerium TMS-acetylide and the products reduced to the C-glycosylacetylene-TMS derivatives. The gluco and galacto configurations yielded exclusively the beta-C-glycoside, whereas the mannonolactone gave a mixture of alpha-C- and beta-C-anomer. The products were subjected to acetolysis and TMS cleavage. The resulting peracetylated glycosylacetylenes were cross-coupled with the (R,S)-N-alpha-acetyl-3- and 4-iodophenylalanine O-methyl esters by Pd(0) catalysis in piperidine to give the eight possible C-linked glycosyl amino acid building blocks 33-40 as diastereomeric pairs. These were O-deacetylated. As an example of further conversion into neoglycopeptide templates the N-acetyl group of the 4-linked galacto-diastereomeric pair 43 was hydrolyzed selectively by acylase 1 and separated from the (R)stereoisomer. The product was converted to 4-(beta-C-galactosylacetylene)(N-alpha-Fmoc-)-L-phenylalanine (52) by reaction with Fmoc-OSu. Acid hydrolysis of galactosyl acetylene phenyl alanine 43 at elevated temperature afforded the conversion of the acetylene to the 1'-oxo derivative which was also N-alpha-Fmoc protected. The building blocks were used in the glycopeptide synthesis of three neoglycopeptide templates 54, 55, and 56 known to bind to murine MHC class II E-k and to present the glycan for interaction with the T-cell receptor. This template has previously been employed to elicit a carbohydrate specific T-cell response.

  DOI：

  10.1021/jo980517h

文献信息

• Novel Type of Rigid C-Linked Glycosylacetylene−Phenylalanine Building Blocks for Combinatorial Synthesis of C-linked Glycopeptides
  作者：Todd Lowary、Morten Meldal、Arnim Helmboldt、Andrea Vasella、Klaus Bock

  DOI：10.1021/jo980517h

  日期：1998.12.1

  C-linked 3- and 4-(glycosylacetylene)-Fmoc-phenylalanines were synthesized as rigid building blocks for synthesis of libraries of neoglycopeptide templates. Perbenzylated 1,5-galactonolactone, 1,5-gluconolactone, and 1,5-mannonolactone were reacted with cerium TMS-acetylide and the products reduced to the C-glycosylacetylene-TMS derivatives. The gluco and galacto configurations yielded exclusively the beta-C-glycoside, whereas the mannonolactone gave a mixture of alpha-C- and beta-C-anomer. The products were subjected to acetolysis and TMS cleavage. The resulting peracetylated glycosylacetylenes were cross-coupled with the (R,S)-N-alpha-acetyl-3- and 4-iodophenylalanine O-methyl esters by Pd(0) catalysis in piperidine to give the eight possible C-linked glycosyl amino acid building blocks 33-40 as diastereomeric pairs. These were O-deacetylated. As an example of further conversion into neoglycopeptide templates the N-acetyl group of the 4-linked galacto-diastereomeric pair 43 was hydrolyzed selectively by acylase 1 and separated from the (R)stereoisomer. The product was converted to 4-(beta-C-galactosylacetylene)(N-alpha-Fmoc-)-L-phenylalanine (52) by reaction with Fmoc-OSu. Acid hydrolysis of galactosyl acetylene phenyl alanine 43 at elevated temperature afforded the conversion of the acetylene to the 1'-oxo derivative which was also N-alpha-Fmoc protected. The building blocks were used in the glycopeptide synthesis of three neoglycopeptide templates 54, 55, and 56 known to bind to murine MHC class II E-k and to present the glycan for interaction with the T-cell receptor. This template has previously been employed to elicit a carbohydrate specific T-cell response.