microtropioside B | 1227698-63-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: microtropioside B
• 英文别名: (2R,3R,4S,5S,6R)-2-[[(3R,4aS,6aS,8R,10aR,10bS)-3-[(1S)-1,2-dihydroxyethyl]-3,4a,7,7,10a-pentamethyl-2,5,6,6a,8,9,10,10b-octahydro-1H-benzo[f]chromen-8-yl]oxy]-6-(hydroxymethyl)oxane-3,4,5-triol
• CAS: 1227698-63-6
• 化学式: C₂₆H₄₆O₉
• 分子量: 502.646
• InChiKey: NZHFYMRBDOPCJB-UCGMPUQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  35
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  149
• 氢给体数：
  6
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  microtropioside B 在 hesperidinase 、 emulsin 作用下， 以 水 、 二甲基亚砜 为溶剂， 反应 90.0h， 以3.5 mg的产率得到(14S)-ent-8,13β-epoxylabdane-3β,14,15-triol
  参考文献：
  名称：

  Microtropiosides A–F: ent-Labdane diterpenoid glucosides from the leaves of Microtropis japonica (Celastraceae)

  摘要：

  From a 1-BuOH-soluble fraction of a MeOH extract of the leaves of Microtropis japonica, collected in the Okinawa islands, six ent-labdane glucosides, named microtropiosides A-F, were isolated together with one known acyclic sesquiterpene glucoside. Their structures were elucidated by a combination of spectroscopic analyses, and their absolute configurations determined by application of the beta-D-glucopyranosylation-induced shift-trend rule in (13)C NMR spectroscopy and the modified Mosher's method. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.phytochem.2010.01.004

文献信息

• Microtropiosides A–F: ent-Labdane diterpenoid glucosides from the leaves of Microtropis japonica (Celastraceae)
  作者：Yuka Koyama、Katsuyoshi Matsunami、Hideaki Otsuka、Takakazu Shinzato、Yoshio Takeda

  DOI：10.1016/j.phytochem.2010.01.004

  日期：2010.4

  From a 1-BuOH-soluble fraction of a MeOH extract of the leaves of Microtropis japonica, collected in the Okinawa islands, six ent-labdane glucosides, named microtropiosides A-F, were isolated together with one known acyclic sesquiterpene glucoside. Their structures were elucidated by a combination of spectroscopic analyses, and their absolute configurations determined by application of the beta-D-glucopyranosylation-induced shift-trend rule in (13)C NMR spectroscopy and the modified Mosher's method. (C) 2010 Elsevier Ltd. All rights reserved.