| 1192361-01-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• CAS: 1192361-01-5
• 化学式: C₃₈H₅₀Cl₃NO₂₄
• 分子量: 1011.17
• InChiKey: JJWJFEIPKOGFPU-MJPFEOFBSA-N

反应信息

• 作为反应物：
  描述：

  、 4-methoxyphenyl (2-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl)-(1->2)-(3,4-di-O-benzyl-α-L-rhamnopyranosyl)-(1->3)-(2,4,6-tri-O-benzyl-β-D-galactopyranosyl)-(1->2)-3,4-di-O-benzyl-α-L-rhamnopyranoside 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 以68%的产率得到4-methoxyphenyl (2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1->3)-[(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1->4)]-2-O-acetyl-α-L-rhamnopyranosyl-(1->3)-(2-O-acetyl-4-O-benzyl-α-L-rhamnopyranosyl)-(1->2)-(3,4-di-O-benzyl-α-L-rhamnopyranosyl)-(1->3)-(2,4,6-tri-O-benzyl-β-D-galactopyranosyl)-(1->2)-3,4-di-O-benzyl-α-L-rhamnopyranoside
  参考文献：
  名称：

  Total synthesis of the heptasaccharide repeating unit of the iron-binding exopolysaccharide secreted by Klebsiella oxytoca BAS-10

  摘要：

  The first total synthesis of a heptasaccharide found in the iron-binding exopolysaccharide produced by Klebsiella oxytoca BAS-10 has been achieved in excellent yield using a block synthetic strategy. A trisaccharide glycosyl donor was stereoselectively coupled with a tetrasaccharide glycosyl acceptor using the trichloroacetimidate activation procedure. The yields and stereo outcome were excellent in each step of glycosylation. A late stage oxidation protocol was adopted for the oxidation of the primary hydroxyl group to the carboxylic functionality while keeping a secondary hydroxyl group unaffected. (c) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.07.009
• 作为产物：
  描述：

  、 三氯乙腈 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 以1.3 g的产率得到
  参考文献：
  名称：

  Total synthesis of the heptasaccharide repeating unit of the iron-binding exopolysaccharide secreted by Klebsiella oxytoca BAS-10

  摘要：

  The first total synthesis of a heptasaccharide found in the iron-binding exopolysaccharide produced by Klebsiella oxytoca BAS-10 has been achieved in excellent yield using a block synthetic strategy. A trisaccharide glycosyl donor was stereoselectively coupled with a tetrasaccharide glycosyl acceptor using the trichloroacetimidate activation procedure. The yields and stereo outcome were excellent in each step of glycosylation. A late stage oxidation protocol was adopted for the oxidation of the primary hydroxyl group to the carboxylic functionality while keeping a secondary hydroxyl group unaffected. (c) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.07.009