methyl 2,3-di-O-acetyl-4-O-methylfucopyranoside | 33164-15-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 2,3-di-O-acetyl-4-O-methylfucopyranoside
• 英文别名: [(2R,3R,4S,5S,6R)-3-acetyloxy-2,5-dimethoxy-6-methyloxan-4-yl] acetate
• CAS: 33164-15-7；33164-17-9；42822-29-7；53919-62-3；72945-48-3；72945-49-4；72945-50-7
• 化学式: C₁₂H₂₀O₇
• 分子量: 276.287
• InChiKey: YAHIQEZSBDYBSD-LTVFLDSHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.26
• 重原子数：
  19.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  80.29
• 氢给体数：
  0.0
• 氢受体数：
  7.0

反应信息

• 作为产物：
  描述：

  (1S,2S,4S,5'R,6R,7S,8R,9S,12S,13R,14R)-17-methoxy-14-[(2R,3R,4S,5S,6R)-5-methoxy-6-methyl-3-[(2S,3R,4S,5R,6R)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-4-[(2S,3R,4S,5R)-3,4,5-trimethoxyoxan-2-yl]oxyoxan-2-yl]oxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-18-ene-6,2'-oxane] 生成 methyl 2,3-di-O-acetyl-4-O-methylfucopyranoside
  参考文献：
  名称：

  YU, BO-YANG;HIRAI, YASUAKI;SHOJI, JUNZO;XU, GUO-JUN, CHEM. AND PHARM. BULL., 38,(1990) N, C. 1931-1935

  摘要：

  DOI：

文献信息

• Studies on the constituents of the root of Polygala tenuifolia Willdenow. II. On the structures of onjisaponins A, B and E.
  作者：SEIICHI SAKUMA、JUNZO SHOJI

  DOI：10.1248/cpb.30.810

  日期：——

  The structures of three triterpenoidal saponins, onjisaponins A (1), B (2) and E (3), were determined on the basis of spectral and chemical evidence as presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-[β-D-apio-D-furanosyl (1→3)] [β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)]-α-L-rhamnopyranosyl}-3-O-(α-L-rhamnopyranosyl)-4-O-(4'-methoxy-cinnamoyl)-β-D-fucopyranoside, presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-[β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl]-3-O-(α-L-rhamnopyranosyl)-4-O-(4'-methoxycinnamoyl)-β-D-fucopyranoside (=senegin III) and presenegenin- (3)-O-β-D-glucopyranosido-(28)-2-O-[β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl]-4-O-(3', 4', 5'-trimethoxycinnamoyl)-β-D-fucopyranoside, respectively. The 13C nuclear magnetic resonance spectra of onjisaponins A, B, E and their derivatives were investigated and each carbon signal was assigned as shown in Table I.

  三种三萜皂苷的结构，即翁鸡皂苷A（1）、B（2）和E（3），是基于光谱和化学证据确定的，其结构分别为：presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-[β-D-apio-D-furanosyl (1→3)] [β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)]-α-L-rhamnopyranosyl}-3-O-(α-L-rhamnopyranosyl)-4-O-(4'-methoxy-cinnamoyl)-β-D-fucopyranoside，presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-[β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl]-3-O-(α-L-rhamnopyranosyl)-4-O-(4'-methoxycinnamoyl)-β-D-fucopyranoside（=senegin III）和presenegenin-(3)-O-β-D-glucopyranosido-(28)-2-O-[β-D-galactopyranosyl (1→4)-β-D-xylopyranosyl (1→4)-α-L-rhamnopyranosyl]-4-O-(3', 4', 5'-trimethoxycinnamoyl)-β-D-fucopyranoside。对翁鸡皂苷A、B、E及其衍生物的13C核磁共振光谱进行了研究，并对每个碳信号进行了如表I所示的赋值。