9-[(2R,4R,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]-3,8-dihydroxy-3-methyl-2,4-dihydro-1H-benzo[a]anthracene-7,12-dione | 176040-55-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 角环素
• 英文名称: 9-[(2R,4R,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]-3,8-dihydroxy-3-methyl-2,4-dihydro-1H-benzo[a]anthracene-7,12-dione
• CAS: 176040-55-4
• 化学式: C₂₅H₂₆O₇
• 分子量: 438.477
• InChiKey: XVPCKKLHSCGWEE-SNQVPWJTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  32
• 可旋转键数：
  1
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  124
• 氢给体数：
  4
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  9-[(2R,4R,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]-3,8-dihydroxy-3-methyl-2,4-dihydro-1H-benzo[a]anthracene-7,12-dione 在 氧气 作用下， 以 甲醇 为溶剂， 反应 24.0h， 以35%的产率得到(3S)-9-[(2R,4R,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]-3,8-dihydroxy-3-methyl-2,4-dihydrobenzo[a]anthracene-1,7,12-trione
  参考文献：
  名称：

  Total synthesis of urdamycinone B via C-glycosidation of an unprotected sugar and Diels–Alder reaction of C-glycosyl juglone

  摘要：

  The total synthesis of C-glycosyl angucycline, urdamycinone B 1, was achieved via C-glycosidation of naphthol 6 and the unprotected o-olivose 7, and Diels-Alder reaction of the unprotected C-glycosyl juglone 9 and the diene 17 as the key steps.

  DOI：

  10.1039/cc9960000225
• 作为产物：
  描述：

  5-(methoxymethoxy)-1,4-naphthoquinone 在 palladium on activated charcoal 四氟硼酸-二乙醚络合物 、 potassium fluoride 、 三乙酰氧基硼 、 三氟甲磺酸三甲基硅酯 、 氢气 、 双氧水 、 sodium hydride 、 potassium hydrogencarbonate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 乙酸乙酯 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 25.5h， 生成 9-[(2R,4R,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]-3,8-dihydroxy-3-methyl-2,4-dihydro-1H-benzo[a]anthracene-7,12-dione
  参考文献：
  名称：

  Total synthesis of urdamycinone B via C-glycosidation of an unprotected sugar and Diels–Alder reaction of C-glycosyl juglone

  摘要：

  The total synthesis of C-glycosyl angucycline, urdamycinone B 1, was achieved via C-glycosidation of naphthol 6 and the unprotected o-olivose 7, and Diels-Alder reaction of the unprotected C-glycosyl juglone 9 and the diene 17 as the key steps.

  DOI：

  10.1039/cc9960000225

文献信息

• Total synthesis of urdamycinone B via C-glycosidation of an unprotected sugar and Diels–Alder reaction of C-glycosyl juglone
  作者：Goh Matsuo、Yuko Miki、Masaya Nakata、Shuichi Matsumura、Kazunobu Toshima

  DOI：10.1039/cc9960000225

  日期：——

  The total synthesis of C-glycosyl angucycline, urdamycinone B 1, was achieved via C-glycosidation of naphthol 6 and the unprotected o-olivose 7, and Diels-Alder reaction of the unprotected C-glycosyl juglone 9 and the diene 17 as the key steps.
• Total Synthesis of <i>C</i>-Glycosylangucycline, Urdamycinone B, Using an Unprotected Sugar
  作者：Goh Matsuo、Yuko Miki、Masaya Nakata、Shuichi Matsumura、Kazunobu Toshima

  DOI：10.1021/jo990648y

  日期：1999.9.1

  The total synthesis of urdamycinone B (1), a prototypical member of the C-glycosylangucycline antibiotics, was achieved by a novel and effective strategy without any protecting group in the sugar moiety. The unprotected C-glycosyljuglone 6 was effectively synthesized by the aryl C-glycosidation of 1,5-naphthalenediol (16) with the totally unprotected D-olivose (8) and the subsequent regioselective photooxygenation of the resultant C-glycosylnaphthalenediol 17. On the other hand, the diene 7 was prepared from 3-methyl-2-cyclohexen-1-one (9) in a short step via the cross-coupling of the vinyl triflate 20 and vinylbutyltin (21) and the Wittig reaction of the aldehyde 24 and the phosphine 25. Finally, the regioselective Diels-Alder reaction of the unprotected C-glycosyljuglone 6 and the diene 7, followed by the regioselecitive introduction of the ketone function at the C1 position, led to the total synthesis of 1.