isopropyl 6-desoxy-6-N,N-dibenzylamino-1,2:3,4-di-O-isopropylidene-7-ulo-L-glycero-α-D-galacto-1,5-octopyranuronate | 1292211-62-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氧吡喃
• 英文名称: isopropyl 6-desoxy-6-N,N-dibenzylamino-1,2:3,4-di-O-isopropylidene-7-ulo-L-glycero-α-D-galacto-1,5-octopyranuronate
• 英文别名: propan-2-yl (3R)-3-(dibenzylamino)-2-oxo-3-[(1S,2R,6R,8R,9S)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecan-8-yl]propanoate
• CAS: 1292211-62-1
• 化学式: C₃₁H₃₉NO₈
• 分子量: 553.653
• InChiKey: JDKXPROBQWDJQB-SKJVAAPUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  40
• 可旋转键数：
  10
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  92.8
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  isopropyl 6-desoxy-6-N,N-dibenzylamino-1,2:3,4-di-O-isopropylidene-7-ulo-L-glycero-α-D-galacto-1,5-octopyranuronate 在 4-二甲氨基吡啶 、 lithium aluminium tetrahydride 、 三乙胺 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 为溶剂， 反应 72.0h， 生成 6-N,N-dibenzylamino-6,8-dideoxy-1,2:3,4-di-O-isopropylidene-7-C-methyl-L-glycero-α-D-galacto-1,5-octopyranose
  参考文献：
  名称：

  Efficient Synthesis of Direct Precursors of the Carbohydrate Moiety of New Antibacterials 6-Epi-VIC-105555 and 6-Epi-VIC-II

  摘要：

  In search for new antibiotics we have developed a novel route leading to direct precursors of the carbohydrate moieties of new promising antibacterial agents 6-epi-VIC-105555 and 6-epi-VIC-II. The presented synthetic strategy consists of using as starting material the readily available beta-dibenzylamino-alpha-ketoester and application of a sequence of chemical transformations on C-7: olefination or methylation, reduction, deoxygenation of the terminal alcohol, and finally hydrogenation. The desired molecules were obtained in a stereoselective fashion and with good overall yields.

  DOI：

  10.1080/07328303.2011.614982
• 作为产物：
  描述：

  、 二苄胺 以 正戊烷 为溶剂， 反应 28.0h， 以42%的产率得到isopropyl 6-desoxy-6-N,N-dibenzylamino-1,2:3,4-di-O-isopropylidene-7-ulo-L-glycero-α-D-galacto-1,5-octopyranuronate
  参考文献：
  名称：

  林可胺前体的非对映选择性合成

  摘要：

  报道了亚麻胺非对映异构体的四种氨基二醇前体的立体选择性合成。该程序基于 1,2;3,4-di-O-isopropylidene-α-D-galactohexodialdo-1,5-pyranose 的初始双碳延伸，然后通过亲核胺化立体控制引入氨基. 已经研究和比较了两种互补的方法：第一种是将 α-氯缩水甘油酯直接转化为 β-氨基-α-酮酯。第二种策略是基于用二苄胺处理 β-碘-α-酮酯的三步合成。β-氨基-α-酮酯的后续还原在色谱纯化后提供纯的D-赤型、L-苏型、L-赤型和D-苏型氨基二醇。进一步的经典转化提供了 N-乙酰基衍生物，

  DOI：

  10.1002/ejoc.201001740

文献信息

• Diastereoselective Synthesis of Lincosamine Precursors
  作者：Fiona Serra、Philippe Coutrot、Mélanie Estève-Quelquejeu、Patrick Herson、Tomasz K. Olszewski、Claude Grison

  DOI：10.1002/ejoc.201001740

  日期：2011.4

  strategy is a three-step synthesis that is based on the treatment of the β-iodo-α-keto ester with dibenzylamine. Subsequent reduction of the β-amino-α-keto ester provides the pure D-erythro, L -threo, L-erythro, and D-threo aminodiols after chromatographic purification. Further classical transformations afford the N-acetyl derivatives, which are key precursors of the lincosamine diastereomers.

  报道了亚麻胺非对映异构体的四种氨基二醇前体的立体选择性合成。该程序基于 1,2;3,4-di-O-isopropylidene-α-D-galactohexodialdo-1,5-pyranose 的初始双碳延伸，然后通过亲核胺化立体控制引入氨基. 已经研究和比较了两种互补的方法：第一种是将 α-氯缩水甘油酯直接转化为 β-氨基-α-酮酯。第二种策略是基于用二苄胺处理 β-碘-α-酮酯的三步合成。β-氨基-α-酮酯的后续还原在色谱纯化后提供纯的D-赤型、L-苏型、L-赤型和D-苏型氨基二醇。进一步的经典转化提供了 N-乙酰基衍生物，
• Efficient Synthesis of Direct Precursors of the Carbohydrate Moiety of New Antibacterials 6-Epi-VIC-105555 and 6-Epi-VIC-II
  作者：Tomasz K. Olszewski、Fiona Serra、Claude Grison、Patric Herson

  DOI：10.1080/07328303.2011.614982

  日期：2011.2.1

  In search for new antibiotics we have developed a novel route leading to direct precursors of the carbohydrate moieties of new promising antibacterial agents 6-epi-VIC-105555 and 6-epi-VIC-II. The presented synthetic strategy consists of using as starting material the readily available beta-dibenzylamino-alpha-ketoester and application of a sequence of chemical transformations on C-7: olefination or methylation, reduction, deoxygenation of the terminal alcohol, and finally hydrogenation. The desired molecules were obtained in a stereoselective fashion and with good overall yields.