5-aminopentyl β-D-galactopyranoside | 442682-48-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 5-aminopentyl β-D-galactopyranoside
• 英文别名: 5-aminopentyl-β-D-galactopyranoside
• CAS: 442682-48-6
• 化学式: C₁₁H₂₃NO₆
• 分子量: 265.307
• InChiKey: OQOBUQOVWAJFHR-ZKKRXERASA-N

物化性质

• 沸点：
  476.2±45.0 °C(Predicted)
• 密度：
  1.31±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -2.07
• 重原子数：
  18.0
• 可旋转键数：
  7.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  125.4
• 氢给体数：
  5.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  格尔德霉素 、 5-aminopentyl β-D-galactopyranoside 在 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 以88%的产率得到17-demethoxy-17-[(2-β-galactopyranosylpentyl)amino]geldanamycin
  参考文献：
  名称：

  Synthesis and Enzyme-Specific Activation of Carbohydrate−Geldanamycin Conjugates with Potent Anticancer Activity

  摘要：

  Geldanamycin (GA) is a potent anticancer antibiotic that inhibits Hsp90. Its potential clinical utility is hampered by its severe toxicity. To alleviate this problem, we synthesized a series of carbohydrate - geldanamycin conjugates for enzyine-specific activation to increase tumor selectivity. The conjugation was carried out at the C-17-position of GA. Their anticancer activity was tested in a number of cancer cell lines. The enzyme-specific activation of these conjugates M ion was evaluated with beta-galactosidase and beta-glucosidase. Evidently. glycosylation of C-17-pasition converted GA to an inactive prodrug before enzyme cleavage. Glucose-GA, as positive control, showed anticancer activity with IC50 of 70.2- 380.9 nM in various cancer cells by beta-glucocsidase activation inside of the tumor cells, which was confirmed by 3-fold inhibition using beta-glucasidase. specific inhibitor [2,5-dihydroxyniethy-3,4-dihydroxypyrrolidine (DMDP)]. Compared to glucose- GA, galactose- and lactose-GA conjugates exhibited much less activity with IC50 greater than 8000-25 000 nM. However, when galactose- and lactose-GA, were incubated with beta-galactosidase in the cells, their anticancer activity was enhanced by 3- to 40-fold. The results suggest, that GA can be inactivated by glycosylation of C-17-position and reactivated for anticancer activity by beta-galactosidase. Therefore, galactose-GA can be exploited in antibody-directed enzyme prodrug therapy (ADEPT) with beta-galactosidase for enzyme-specific activation in tumors. to increase tumor selectivity.

  DOI：

  10.1021/jm049693a
• 作为产物：
  描述：

  beta-D-半乳糖五乙酸酯 在 palladium on activated charcoal 4 A molecular sieve 、 氢气 、 sodium methylate 、 乙酸肼 、 溶剂黄146 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 甲醇 、 乙醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， -30.0~60.0 ℃ 、344.74 kPa 条件下， 反应 22.0h， 生成 5-aminopentyl β-D-galactopyranoside
  参考文献：
  名称：

  Synthesis and Enzyme-Specific Activation of Carbohydrate−Geldanamycin Conjugates with Potent Anticancer Activity

  摘要：

  Geldanamycin (GA) is a potent anticancer antibiotic that inhibits Hsp90. Its potential clinical utility is hampered by its severe toxicity. To alleviate this problem, we synthesized a series of carbohydrate - geldanamycin conjugates for enzyine-specific activation to increase tumor selectivity. The conjugation was carried out at the C-17-position of GA. Their anticancer activity was tested in a number of cancer cell lines. The enzyme-specific activation of these conjugates M ion was evaluated with beta-galactosidase and beta-glucosidase. Evidently. glycosylation of C-17-pasition converted GA to an inactive prodrug before enzyme cleavage. Glucose-GA, as positive control, showed anticancer activity with IC50 of 70.2- 380.9 nM in various cancer cells by beta-glucocsidase activation inside of the tumor cells, which was confirmed by 3-fold inhibition using beta-glucasidase. specific inhibitor [2,5-dihydroxyniethy-3,4-dihydroxypyrrolidine (DMDP)]. Compared to glucose- GA, galactose- and lactose-GA conjugates exhibited much less activity with IC50 greater than 8000-25 000 nM. However, when galactose- and lactose-GA, were incubated with beta-galactosidase in the cells, their anticancer activity was enhanced by 3- to 40-fold. The results suggest, that GA can be inactivated by glycosylation of C-17-position and reactivated for anticancer activity by beta-galactosidase. Therefore, galactose-GA can be exploited in antibody-directed enzyme prodrug therapy (ADEPT) with beta-galactosidase for enzyme-specific activation in tumors. to increase tumor selectivity.

  DOI：

  10.1021/jm049693a

文献信息

• Synthesis of the 5-aminopentyl glycoside of β-d-Galp-(1 → 4)-β-d-GlcpNAc-(1 → 3)-l-Fucp and fragments thereof related to glycopeptides of human Christmas factor and the marine sponge Microciona prolifera
  作者：Thomas Ziegler

  DOI：10.1016/0008-6215(94)84179-9

  日期：1994.9

  The marine sponge Microciona prolifera and human coagulation factor IX (Christmas factor)-related mono- to tri-saccharide 5-aminopentyl glycosides beta-D-Gal p-R (5), beta-D-Glc pNAc-R (16), beta-D-Gal p-(1-->4)-beta-D-Glc p NAc-R (26), beta-D-Glc p NAc-(1-->3)-beta-L-Fuc p-R (39), beta-D-Glc pNAc-(1-->3)-alpha-L-Fuc p-R (43), beta-D-Gal p-(1-->4)-beta-D- Glc pNAc-(1-->3)-beta-L-Fuc p-R (45), and beta-D-Gal

  海洋海绵Microciona增殖和人类凝血因子IX（圣诞节因子）相关的单糖至三糖5-氨基戊基糖苷β-D-GalpR（5），β-D-GlcpNAc-R（16），β- D-Gal p-（1-> 4）-beta-D-Glc p NAc-R（26），beta-D-Glc p NAc-（1-> 3）-beta-L-Fuc pR（39 ），β-​​D-GlcpNAc-（1-> 3）-α-L-FucpR（43），β-D-Galp-（1-> 4）-β-D-GlcpNAc-（ 1-> 3）-beta-L-Fuc pR（45）和beta-D-Gal p-（1-> 4）-beta-D-Glc p NAc-（1-> 3）-alpha制备了-L-Fuc pR（47），其中R是5-氨基戊氧基间隔基，其允许糖缀合物的构建。因此，3,4,6-三-O-乙酰基-2-脱氧-2-（2,2,2-三氯乙氧基羰基-氨基）-α-D-吡喃葡萄糖基三氯乙酰亚氨酸盐（10）和1
• Arrays with cleavable linkers
  申请人：Wong Chi-Huey

  公开号：US20070213278A1

  公开（公告）日：2007-09-13

  The invention provides arrays of molecules where the molecules (e.g., glycans) are attached to the arrays by cleavable linkers. The invention also provides methods for using these arrays, methods for identifying the structural elements of molecules bound to these arrays by using the cleavable linkers, especially the structural elements that are important for binding to test samples. The invention further provides methods for evaluating whether test samples and test molecules can bind to distinct glycans on the arrays and useful glycans identified using the methods and arrays provided herein.

  本发明提供了分子阵列，其中分子（例如糖基）通过可断裂连接剂连接到阵列上。本发明还提供了使用这些阵列的方法，使用可断裂连接剂识别结合到这些阵列上的分子的结构元素的方法，特别是对于与测试样品结合重要的结构元素。本发明还提供了评估测试样品和测试分子是否能够结合到阵列上不同糖基的方法，以及使用本发明提供的方法和阵列确定的有用糖基。
• Design, synthesis and biological evaluation of the positional isomers of the galactose conjugates able to target hepatocellular carcinoma cells via ASGPR-mediated cellular uptake and cytotoxicity
  作者：Wenchong Ye、Qun Tang、Tiantian Zhou、Cui Zhou、Chuangchuang Fan、Xiaoyang Wang、Chunmei Wang、Keyu Zhang、Guochao Liao、Wen Zhou

  DOI：10.1016/j.ejmech.2023.115988

  日期：2024.1