2-{(2S,3R,4R,5S,6R)-4-Benzyloxy-6-benzyloxymethyl-2-ethylsulfanyl-5-[(3aS,4R,6S,7R,7aR)-7-hydroxy-4-(1-methoxy-1-methyl-ethoxymethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yloxy]-tetrahydro-pyran-3-yl}-isoindole-1,3-dione | 190269-45-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-{(2S,3R,4R,5S,6R)-4-Benzyloxy-6-benzyloxymethyl-2-ethylsulfanyl-5-[(3aS,4R,6S,7R,7aR)-7-hydroxy-4-(1-methoxy-1-methyl-ethoxymethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yloxy]-tetrahydro-pyran-3-yl}-isoindole-1,3-dione
• CAS: 190269-45-5
• 化学式: C₄₃H₅₃NO₁₂S
• 分子量: 807.959
• InChiKey: PPTUFDMQNFCBIH-GRXILUESSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.32
• 重原子数：
  57.0
• 可旋转键数：
  16.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  140.68
• 氢给体数：
  1.0
• 氢受体数：
  13.0

反应信息

• 作为反应物：
  描述：

  2-{(2S,3R,4R,5S,6R)-4-Benzyloxy-6-benzyloxymethyl-2-ethylsulfanyl-5-[(3aS,4R,6S,7R,7aR)-7-hydroxy-4-(1-methoxy-1-methyl-ethoxymethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yloxy]-tetrahydro-pyran-3-yl}-isoindole-1,3-dione 在 三氟乙酸 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 0.08h， 以1.39 g的产率得到ethyl 4-O-(3,4-O-isopropylidene-β-D-galactopyranosyl)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of the Sda determinant and two analogous tetrasaccharides

  摘要：

  To contribute to the possibility of studying in greater detail the biological significance of Sd(a)-containing glycans as occur in Tamm-Horsfall glycoprotein, the following three spacer-linked tetrasaccharides have been synthesized: the Sd(a) determinant alpha-Neup5Ac-(2 --> 3)-[beta D-GalpNAc-(1 --> 4)]-beta-D-Galp-(1 --> 4)-beta-D-GlcpNAc-(1 --> 0)(CH2)(5)NH2 (1), the Gal-analogue alpha-Neup5Ac-(2 --> 3)-[beta-D-Galp-(1 --> 4)]-beta-D-Galp-(1 --> 4)-beta-D-GlcpNAc-(1 --> 0)(CH2)(5)NH2 (2), and the GlcNAc-analogue alpha-Neup5Ac-(2 --> 3)-[beta-D-GlcpNAc-(1 --> 4)]-beta-D-Galp-(1 --> 4)-beta-D-GlcpNAc-(1 --> 0)(CH2)(5)NH2 (3). The general trisaccharide acceptor 5-azidopentyl (methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranosylonate)-(2 --> 3)-(2,6-di-O-benzyl-beta-D-galactopyranosyl)-(1 --> 4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-beta-D-glucopyranoside was prepared, using methyl (phenyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero-D-galacto-non-2-ulopyranosid)-onate as the sialyl donor. For the syntheses of 1, 2, and 3 the glycosyl donors 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-alpha-D-galactopyranosyl bromide, 2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl bromide, and 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-beta-D-glucopyranosyl trichloroacetimidate, respectively, proved to be the most suitable. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0008-6215(97)00013-x
• 作为产物：
  描述：

  ethyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopryanoside 在 sodium methylate 、 对甲苯磺酸 作用下， 以 甲醇 为溶剂， 生成 2-{(2S,3R,4R,5S,6R)-4-Benzyloxy-6-benzyloxymethyl-2-ethylsulfanyl-5-[(3aS,4R,6S,7R,7aR)-7-hydroxy-4-(1-methoxy-1-methyl-ethoxymethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yloxy]-tetrahydro-pyran-3-yl}-isoindole-1,3-dione
  参考文献：
  名称：

  Synthesis of the Sda determinant and two analogous tetrasaccharides

  摘要：

  To contribute to the possibility of studying in greater detail the biological significance of Sd(a)-containing glycans as occur in Tamm-Horsfall glycoprotein, the following three spacer-linked tetrasaccharides have been synthesized: the Sd(a) determinant alpha-Neup5Ac-(2 --> 3)-[beta D-GalpNAc-(1 --> 4)]-beta-D-Galp-(1 --> 4)-beta-D-GlcpNAc-(1 --> 0)(CH2)(5)NH2 (1), the Gal-analogue alpha-Neup5Ac-(2 --> 3)-[beta-D-Galp-(1 --> 4)]-beta-D-Galp-(1 --> 4)-beta-D-GlcpNAc-(1 --> 0)(CH2)(5)NH2 (2), and the GlcNAc-analogue alpha-Neup5Ac-(2 --> 3)-[beta-D-GlcpNAc-(1 --> 4)]-beta-D-Galp-(1 --> 4)-beta-D-GlcpNAc-(1 --> 0)(CH2)(5)NH2 (3). The general trisaccharide acceptor 5-azidopentyl (methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranosylonate)-(2 --> 3)-(2,6-di-O-benzyl-beta-D-galactopyranosyl)-(1 --> 4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-beta-D-glucopyranoside was prepared, using methyl (phenyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-2-thio-D-glycero-D-galacto-non-2-ulopyranosid)-onate as the sialyl donor. For the syntheses of 1, 2, and 3 the glycosyl donors 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-alpha-D-galactopyranosyl bromide, 2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl bromide, and 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-beta-D-glucopyranosyl trichloroacetimidate, respectively, proved to be the most suitable. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0008-6215(97)00013-x