phenethanol-β-D-gentiobioside | 165395-35-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: phenethanol-β-D-gentiobioside
• 英文别名: 2-phenylethyl β-D-glucopyranosyl-(1→6)-β-D-glucopyranoside；2-phenylethyl β-gentiobioside；Glc(b1-6)Glc(b)-O-EtPh；(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[[(2R,3S,4S,5R,6R)-3,4,5-trihydroxy-6-(2-phenylethoxy)oxan-2-yl]methoxy]oxane-3,4,5-triol
• CAS: 165395-35-7
• 化学式: C₂₀H₃₀O₁₁
• 分子量: 446.452
• InChiKey: UKPSYYFYNMESBQ-XSVWGIRKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.2
• 重原子数：
  31
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  179
• 氢给体数：
  7
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  phenethanol-β-D-gentiobioside 在 氨 作用下， 以 甲醇 为溶剂， 反应 24.0h， 以580 mg的产率得到2-phenylethyl β-lactoside
  参考文献：
  名称：

  β-primeverosidase（乌龙茶和红茶生产过程中形成香气的关键酶）的底物特异性。

  摘要：

  我们合成了9种二糖苷和2-苯基乙醇单糖苷，以研究茶树种（Camellia sinensis var。sinensis cv。Yabukita）鲜叶中纯化的β-primeverosidase的底物特异性，并比较其表面底物特异性。茶叶中的粗酶提取物。粗酶提取物主要表现出β-primeverosidase活性，尽管在一定程度上存在单糖苷酶活性。纯化的β-primeverosidase对糖蛋白部分显示非常狭窄的底物特异性，尤其是对β-primeverosyl（6-O-β-D-吡喃吡喃糖基-β-D-葡萄糖基吡喃糖基）部分的特异性。这些酶会水解天然存在的二糖苷，例如β-primeveroside，β-vicianoside，β-acuminoside，β-龙胆苷和6-O-α-L-阿拉伯呋喃糖基-β-D-吡喃葡萄糖苷，但无法水解合成的非天然二糖苷。纯化的酶对2-苯乙基β-D-吡喃葡萄糖苷没有活性。该酶将

  DOI：

  10.1271/bbb.65.2719
• 作为产物：
  描述：

  O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl(1->6)-2,3,4-tri-O-acetyl-β-D-glucopyranosyl)trichloroacetimidate 在 甲醇 、 三氟化硼乙醚 、 sodium methylate 作用下， 以 二氯甲烷 为溶剂， 反应 0.17h， 生成 phenethanol-β-D-gentiobioside
  参考文献：
  名称：

  Synthesis and evaluation of diverse analogs of amygdalin as potential peptidomimetics of peptide T

  摘要：

  Peptide T (ASTTTNYT) is a promising molecule to prevent the neuro psychometric symptoms of patients suffering AIDS and for the treatment of psoriasis. In order to fully prove its therapeutic benefits, efforts were put forward to design peptidomimetics of the peptide. In this direction, in a recent computational study the natural product amygdalin was identified as a prospective peptidomimetic of the peptide and later proved to exhibit a similar chemotactic profile to the peptide. However, the cyanide moiety of amygdalin provides to the molecule a toxic profile. The present study reports the synthesis of a set of amygdalin analogs lacking the cyanide group with improved chemotactic profiles. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2004.12.071

文献信息

• Expression and Biochemical Characterization of β-Primeverosidase and Application of β-Primeverosylamidine to Affinity Purification
  作者：Hiromichi SAINO、Masaharu MIZUTANI、Jun HIRATAKE、Kanzo SAKATA

  DOI：10.1271/bbb.70447

  日期：2008.2.23

  β-Primeverosidase (PD) is a family 1 glycosidase catalyzing the hydrolysis of β-primeverosides (6-O-β-d-xylopyranosyl-β-d-glucopyranosides) to release a disaccharide primeverose. To investigate how PD recognizes the disaccharide moiety of β-primeverosides, the recombinant PD was expressed by a baculovirus-insect cell system. The recombinant PD was secreted from High Five cells and was properly modified with N-glycosylation and correct cleavage at the N-terminal signal peptide. The recombinant PD exhibited high substrate specificity to β-primeverosides in terms of the glycone moiety, consistently with the substrate specificity of native PD from Camellia sinensis. Next, β-glycosylamidines were synthesized as substrate analog inhibitors. β-Primeverosylamidine strongly inhibited PD activity, but β-glucosylamidine did not. Hence β-primeverosylamidine is an ideal chemical tool for probing disaccharide recognition in the active site of PD. An affinity adsorbent for PD was prepared using β-primeverosylamidine as a ligand. Affinity chromatography gave large amounts of PD with high purity, permitting crystallographic study.

  β-Primeverosidase（PD）是一种家族1糖苷酶，催化β-早春花苷（6-O-β-d-木糖吡喃糖基-β-d-葡萄吡喃糖苷）水解，释放出早春花二糖。为了研究PD如何识别β-早春花苷的二糖部分，我们通过杆状病毒-昆虫细胞系统表达了重组PD。重组PD从High Five细胞中分泌出来，并进行了N-糖基化修饰和N端信号肽的正确切割。重组PD对β-早春花苷的糖苷部分表现出高度的底物特异性，与茶树中天然PD的底物特异性一致。接下来，合成了β-糖苷酰胺作为底物类似物抑制剂。β-早春花苷酰胺强烈抑制PD活性，而β-葡萄糖苷酰胺没有抑制作用。因此，β-早春花苷酰胺是一个理想的化学工具，用于探测PD活性位点中二糖的识别。使用β-早春花苷酰胺作为配体制备了PD的亲和吸附剂。亲和层析获得了高纯度的大量PD，允许进行晶体学研究。
• USE OF AMYGDALIN ANALOGUES FOR THE TREATMENT OF PSORIASIS
  申请人：Universitat Politecnica de Catalunya

  公开号：EP1847270B1

  公开（公告）日：2010-03-03
• Use of Amygdalin Analogues for the Treatment of Psoriasis
  申请人：Perez Gonzalez Juan Jesus

  公开号：US20080125378A1

  公开（公告）日：2008-05-29

  The compounds of formula (1), wherein n is an integer from 0 to 4; R1 is a radical selected from the group consisting of H, CH 3 , CH 2 -CH 3 , C(CH 3 ) 3 , COOH, CONH 2 and C=CH; R2, R3, R4 and R5 are radicals independently selected from the group consisting of H, F, Cl, Br, (C 1 -C 3 )-alkoxyl and (C 1 -C 4 )-alkyl; and R6 is a radical selected from the group consisting of H, F, Cl, Br, (C 1 -C 3 )-alkoxyl, (C 1 -C 4 )-alkyl, R7, CH=CH-R7 and O-CH 2 -R7; wherein R7 is phenyl or phenyl mono- or independently di-substituted with F, Cl, Br, (C 1 -C 3 )-alkoxyl or (C 1 -C 4 )-alkyl, exhibit a similar chemotactic index to that of amygdalin (natural product whose chemotaxis profile is similar to that of peptide T) and, consequently, are useful for treating inflammatory and/or allergic dermatophathies, such as psoriasis, and are especially much less toxic than amygdalin.
• US7956039B2
  申请人：——

  公开号：US7956039B2

  公开（公告）日：2011-06-07